Annex 3 Soil Erosion Control Plan - World Bank Documents
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Transcript of Annex 3 Soil Erosion Control Plan - World Bank Documents
Annex 3 Soil Erosion Control Plan
1. Overall Arrangement for Soil Erosion Control
The overall erosion control measures shall be determined for each protection zone according to the principles of the arrangement of erosion control. The overall layout of erosion control measures for the full line is shown in Table 1. Table 1 Overall Layout of Soil Erosion Control Measures along the New Rapid Railway from
Zhangjiakou to Hohhot
Control zones
Control objects Conservation and prevention measures
Hilly area
Subgrade works
Subgrade slope Retaining wall shall be located by using frame bolt and shaller to protect the deep cutting. Frame slope protection and vegetation measures shall be combined to protect subgrade slope, with vegetation measures mainly being slope shrubs, planting shrubs and grasses within the frame, etc.; and engineering measures are frame slope protection with water cut‐off and drainage channels, mortar rubble slope protection and subgrade drainage works, etc.
Both sides of subgrade
Mainly plant‐based measures, with shrubs inside and trees outside, and natural recovery of both sides of the subgrade shall be paid attention to.
Subgrade stripped topsoil
Temporary protective measures shall be taken on the temporary stockpiling field of the stripped topsoil in the subgrade.
Station Station Engineering measures are mainly station slope protection and drainage works; plant measures are landscaping design combining trees, shrubs, flowers and grass to beautify the environment and improve soil and water conservation.
Stripped topsoil in the station
Temporary protective measures shall be taken on the temporary stockpiling field of stripped topsoil in the station site.
Bridge and culvert works
Bridge and culvert Mortar rubble slope shall be used for the bridge cone slope and river bank; cofferdam shall be set up and removed, and temporary protective measures shall be strengthened.
Tunnel Tunnel Mortar rubble masonry shall be used for the side invert slope and gutter in the tunnel entrance, and water cut‐off and drainage measures shall be taken.
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Earth‐fetching field
Earth‐fetching fieldWhen the construction is completed, protection measures to spread grass seed and plant shrubs shall be taken, and temporary protective measures shall be strengthened for the stripped topsoil on the earth‐fetching field.
Spoil (ballast) field
Spoil (ballast) field Engineering measures and plant measures shall be combined. Retaining walls and drains shall be installed, and topsoil cover measures shall be taken; grass seed shall be spread or shrubs be planted for natural recovery of spoil (ballast) body; and temporary protective measures shall be enhanced for spoil, and stripped topsoil in the disposable ballast.
Construction sidewalk
Construction sidewalk
It shall be remained for local use or maintenance of roads according to the actual situation. The sidewalk which is not used shall be cleaned up and leveled when the construction is finished, and grass seeds shall be spread for natural recovery.
Production and living area in
construction
Construction site, camp
After the construction, the garbage site and hardening space shall be cleaned, and the surface shall be leveled; plant recovery measures shall be taken according to the actual situation.
Plain area
Subgrade works
Subgrade slope Frame slope protection and plant measures shall be combined for the slope protection of the subgrade, with plant measures being shrubs planted at the slope, shrubs planted in the frame and seeding grass, etc. and engineering measures being frame slope protection with water cut‐off and drainage channels, mortar rubble slope protection and subgrade drainage works.
Both sides of subgrade
Mainly plant‐based measures, with shrubs inside and trees outside, and natural recovery of both sides of the subgrade shall be paid attention to.
Subgrade stripped topsoil
Temporary protective measures shall be taken on the temporary stockpiling field of the stripped topsoil in the subgrade.
Station Station Engineering measures are mainly station slope protection and drainage works; plant measures are landscaping design combining trees, shrubs, flowers and grass to beautify the environment and improve soil and water conservation.
Stripped topsoil in the station
Temporary protective measures shall be taken on the temporary stockpiling field of stripped topsoil in the station site.
2. Subgrade Protection Measures
2.1 Subgrade Protection
To reduce soil erosion resulted from subgrade filling and excavation and to ensure the safety of the subgrade project, the line of subgrade has been reinforced and appropriate
Bridge and culvert works
Bridge and culvert Mortar rubble slope shall be used for the bridge cone slope and river bank; cofferdam shall be set up and removed, and temporary protective measures shall be strengthened.
Tunnel Tunnel Mortar rubble masonry shall be used for the side invert slope and gutter in the tunnel entrance, and water cut‐off and drainage measures shall be taken.
Earth‐fetching field
Earth‐fetching fieldWhen the construction is completed, protection measures to spread grass seed and plant shrubs shall be taken, and temporary protective measures shall be strengthened for the stripped topsoil on the earth‐fetching field.
Spoil (ballast) field
Spoil (ballast) field Engineering measures and plant measures shall be combined. Retaining walls and drains shall be installed, and topsoil cover measures shall be taken; grass seed shall be spread or shrubs be planted for natural recovery of spoil (ballast) body; and temporary protective measures shall be enhanced for spoil, and stripped topsoil in the disposable ballast.
Construction sidewalk
Construction sidewalk
It shall be remained for local use or maintenance of roads according to the actual situation. The sidewalk which is not used shall be cleaned up and leveled when the construction is finished, and grass seeds shall be spread for natural recovery.
Production and living area in
construction
Production and living area in construction
After the construction, the garbage site and hardening space shall be cleaned, and the surface shall be leveled; plant recovery measures shall be taken according to the actual situation.
Frame slope protection and plant measures shall be combined for the slope protection of the subgrade, with plant measures being shrubs planted at the slope, shrubs planted in the frame and seeding grass, etc. and engineering measures being frame slope protection with water cut‐off and drainage channels, mortar rubble slope protection and subgrade drainage works.
measures such as retaining wall protection, slope protection by framework or mortar rubble revetment, arched or square slope, planted tank, and new soil grass have been take based on the characteristics of subgrade in different segments. In addition, appropriate drainage system has been designed.
(1) General subgrade slope protection
If the height of the subgrade slope <3.0m, hollow bricks with new soil grass and planted shrubs shall be used; if the height of the slope≥ 3.0m, a layer of two‐way geogrid with a limit tensile strength of not less than 25.0kN/m shall be laid every a filling of 0.6m within the width of 3.0m at the outer section of the slope, C25 concrete hollow brick with new soil grass + planted shrubs in water disconnection framework shall be used for slope protection. The main frame shall be 0.6m thick, and C25 concrete masonry shall be used for the water disconnection tank. The interface between the subgrade surface drainage and slope drainage shall be paid attention to. Three‐dimensional ecological bags may be considered for the protection of city road segments, scenic areas and ecologically sensitive areas. If the slope of the subgrade height is greater than 8.0m, a different slope rate shall be taken according to the filling height. It is 1:1.5 for the slope of 0 ~ 8.0m, 1:1.75 for the slope of 8.0 ~ 12.0m, and 1:2.0 for the slope below 12 m; and a 2.0m wide platform will be located at 12.0m for the slope. New soil grass and planted shrubs in the hollow bricks in C25 concrete arch water disconnection frame will be used for the slope of 0 ~ 12.0m under the shaller, and dry stone revetment or prefabricated solid block revetment will be used for the side slope below 12.0m.
(2) High subgrade slope protection
If the slope height exceeds 12m, the slope rate is 1:1.5 for 0 ~ 8.0m, 1:1.75 for 8.0 ~12.0m, 1:2.0 for the height below 12 m. A 2.0m‐wide platform will be located at 12.0m for the slope. New soil grass and planted shrubs in the hollow bricks in C25 concrete arch water disconnection frame will be used for the slope of 0 ~ 12.0m under the shaller, and dry stone revetment or prefabricated solid block revetment will be used for the side slope below 12.0m. C25 concrete or rubble foot wall of concrete will be positioned at the slope. Gravity retaining wall may be located at some high‐fill subgrades with less arable land to reduce the use of farmland.
(3) General graben slope protection
1) For the cutting slope of general clay and all‐weathered layer, if the height of the slope is less than 3.0m, hollow bricks with new soil grass and planted shrubs shall be used for protection; if the height is equal to or greater than 3.0m, hollow bricks with new soil grass and planted shrubs in C25 concrete water disconnection frame shall be used for protection.
2) For gravel soil, sandy soil cutting slope, hollow bricks with new soil grass and planted shrubs in C25 concrete arched or square grass window shall be used for protection.
3) For strong‐weak weathered soft rock cutting slope whose height is less than 8.0m, hollow bricks with new soil grass and planted shrubs in C25 concrete water disconnection frame shall be used for protection; if the height is greater than 8.0m, hollow bricks with new soil grass and planted shrubs in C25 concrete arch or square grass window shall be used for the lower side slope for protection, hollow bricks with new soil grass and planted shrubs in C25 concrete water disconnection frame shall be used for the most upper side slope for protection.
4) For strong‐weak weathered hard rock cutting slope, if the slope height is less than 8.0m,
hollow bricks with new soil grass and planted shrubs in C25 concrete arch or square grass window shall be used for protection; if the height is greater than 8.0m, hollow bricks with new soil grass and planted shrubs in the retaining wall of C25 concrete hollow window shall be used at the bottom, while hollow bricks with new soil grass + planted shrubs in C25 concrete arched or square grass window shall be used at the upper slope for protection.
Weakly‐ sligthly hard rock cutting: in general, the height of the slope is controlled within 30.0m, and M10 mortar rubbles will be embedded for the slope. Hollow bricks with new soil grass will be used for the protection in the concrete grass window or anchor rod and cable within the framework.
5) In the lots with absence of A, B group packing, if the cutting soil is sand gravel, hard rock, large platform shall be reserved for the foot and side slope of cutting slope, with one level every 8.0 ~ 10.0m, and the slope rate shall be reduced accordingly. C25 concrete grass window shall be used for the slope protection.
6) The types of water disconnection frame slope protection are arch, herringbone and box types. They shall be used based on the soil quality of the slope and the requirement for erosion prevention combined with landscape demand. The spacing between the main frame and the arch shall be 3.0m. For the general soil and soft rock cutting, the main frame is 0.65m thick, and the supporting frame is 0.4m thick; for very soft rock, red clay, swelling (rock) soil cutting, the main frame is 0.8m thick, and the supporting frame is 0.6m thick.
7) Planting tanks in which japanesecreepers and evergreen low shrubs are planted shall be located at the platform of the side trenches in the cutting where retaining wall, pile wall and protection wall are located and the platform from the flooding closed slope lot to the drainage.
(4) Deep cutting slope protection
If the height of soil and soft rock cutting slope exceeds 12.0m, and of hard rock slope exceeds 20.0m, the deep cutting shall be designed, and reinforced protection works shall be set.
1) Gravity retaining wall shall be used in the close of the slope for soil and completely weathered rock cutting, and the height of the retaining wall shall not exceed 4.0m. The measures of slope protection refer to slope subgrade. If the slope height is greater than 15.0m, stratified excavation shall be considered for hierarchical reinforcement or pre‐ strengthening of the lowest part of the slope.
2) In the lots where the slope height of soft rock cutting and hard weathered rock cutting is not more than 18.0m and there is no adverse impact on the structure surface, retaining wall, concrete window grass slope and framework anchored rod shall be used for protection. The height of the retaining wall shall not be greater than 6.0m. In the lots where the slope height is greater than 18.0m or there is adverse impact of the structure surface or broken lithology, stratified excavation shall be considered for hierarchy reinforcement or pre‐ reinforcement of the lowest part of the slope, such as prestressed cables, pre‐reinforced piles and sheet pile walls. In general, the height of the slope shall be controlled within 25.0m. As the strata of the hard rock along this line is old, the joints are developed and the rocks are crushing, grass window wall shall be used for the slope or the slope shall be closed.
3) The slope rate for excavation of the cutting slope of weakly–slightly weathered hard rock shall be determined based on rock lithology, degree of weathering, level, geological structure, groundwater and required allocation of earth and stone. If the slope height is not
greater than 24.0m and there are no lots with adverse impact on the structure surface, retaining wall, concrete grass window slope, wall and frame anchored rod shall be used for protection, with the height of the retaining wall not greater than 8.0m. If the height of the wall exceeds 6.0m, temporary shotcrete shall be taken for the excavated slope of the back of the wall. If the slope height is greater than 24.0m or there are lots with adverse side effects of structure and broken lithology, stratified excavation shall be considered for hierarchical reinforcement or pre‐strengthening of the foot of the slope. The slope height of weak–slight weathered hard rock cutting shall, in general, be controlled within 30.0m. Finishing or pre‐split blasting shall be used for the slope within the thickness of 3.0m, and M10 mortar rubbles shall be embedded. Hollow bricks with new soil grass shall be used inside the concrete grass windows or frame anchored rods and cables.
4) Planting tanks in which japanesecreepers and evergreen low shrubs are planted shall be located at the platform of the side trenches in the cutting where retaining wall, pile wall and protection wall are located and the platform from the foot of the flooding closed slope lot to the drainage.
5) In the lots with absence of A, B group packing, if the cutting soil is sand gravel or hard rock, depressed road's extension shall be designed and large platform shall be reserved for the foot and side slope of cutting slope, with one level every 8.0 ~ 10.0m, and the slope rate shall be reduced accordingly. C25 concrete grass window shall be used for the slope protection.
(5) Expansion rock (soil) cutting slope protection
1) The slope design of expansion rock (soil) excavation shall follow the principle of "reduced slope rate, wide platform, reinforced toe, enhanced drainage and appropriate slope protection". The excavation height shall be generally controlled within 15.0m. The rating of the slope height shall not be more than 6.0m. If the slope height of the cutting is less than 10.0m, the slope rate is generally 1:1.75 for weak swelling rock (soil), 1:2.0 for moderate swelling rock (soil), and 1:2.25 ‐ 1:2.5 for strong expansion rock (soil). The width of the slope platform shall not be less than 2.0m for weak expansion rock (soil), and not less than 3.0m for medium and strong expansion rock (soil).
2) If the slope height of the cutting is less than 3.0m, the use of hollow bricks with new soil grass + planted shrubs shall be made for protection; if the slope height is greater than 3.0m but less than 10.0m, the use of hollow bricks with new soil grass and planted shrubs in C25 concrete water disconnection frame (expansion soil) or C25 concrete grass window (expansion rock) shall be made for protection; if the slope height is equal to or greater than 10.0m, a platform in a width of 3.0 ~ 6.0m shall be located at the slope of expansive soil cutting, hollow bricks with new soil grass and planted shrubs in C25 concrete water disconnection frame combined with supporting sewer shall be used for protection; if the slope is equal to or greater than 10.0m, hollow bricks with new soil grass and planted shrubs in framework anchoring rod (or anchoring cable) combined with supporting sewer shall be used for the protection of the slope of expansion rock. The thickness of the main frame of the C25 concrete water disconnection framework shall not be less than 0.8m, and that of the supporting frame shall be 0.6m. The main frame spacing and the spacing between arches is 3.0m.
(6) Loess cutting slope protection
The excavation height of loess cutting slope is commonly controlled within 20.0m. Side‐ditch platform in a width of 2.0 ~ 3.0m shall be located at the loess cuttings along the line. M10 cement mortar rubble or concrete solid block masonry shall be used for the platform.
If the cutting slope height H is ≤ 5.0m, concrete hollow bricks with new soil grass and planted shrubs inside shall be used for the slope protection. If the slope height is: 5.0m <H ≤ 16.0m, a small platform in a width of 2.0~3.0m shall be located every a height of 8.0m, and platform drainage ditches shall be located; the slope of the upper Pleistocene strata shall be protected using hollow bricks with new soil grass + planted shrubs in C25 concrete water disconnection framework; in mid Pleistocene strata, the slope shall be protected using C25 concrete space wall (mixed vegetation within). If the slope height exceeds 16.0m, the width of the slope platform shall be 4.0 ~ 6.0m, and drainage ditches shall be located at the platform; the slope shall be protected with hollow bricks with new soil grass and planted shrubs in frame anchoring rod in a length of 8.0m.
(7) Cutting of groundwater development
The slope rate shall be reduced by level 1~2 compared with the groundwater undeveloped section. C25 concrete grassed window or C25 concrete arched water disconnection frame + three‐dimensional vegetation network solid soil grass + planted shrubs shall be used. The net frame spacing shall be 2.5m and the main frame shall be 0.8m thick. Water disconnection tank shall be reserved at the top, and supporting sewer in a width of 2.0m and a depth of 2.0~2.5m shall be located every 10.0~15.0m. At the junction of permeable and impermeable sections, a slope platform in a width of 3.0 ~ 5.0m shall be located with drainage ditches in it.
(8) Subgrade drainage works
1) Surface drainage design
① Side ditches, gutters, drains or drainage ditches shall be designed by the slope rate of 1/50, and the top shall be 0.2m higher than the designed water level. The longitudinal slope rate shall not be less than 2‰. The cross‐section dimension of water surpassing for drainage facilities shall be calculated based on water flow. The connection with subgrade surface drainage, slope drainage and sub drainage systems shall be paid attention to.
② If the subgrade slope is protected with water disconnection framework, the slope water disconnection tanks on both sides will be the lateral gutters along the subgrade slope. Lateral gutters along the slope shall be located in the lots where C25 precast concrete hollow brick grassed pavement in a depth of 0.2m and a spacing of 10.0m is used.
③ In the lots where cross slope is significant on the subgrade ground, drainage ditches may be located in the top side. If the ground cross slope is not obvious, drainage ditches shall be located on both sides of the subgrade. Drainage plane shall be straight; if a turn is required, its radius shall not be less than 10.0~20.0m, and the length of the gutter shall be determined according to the actual needs. Drains are generally trapezoidal ditches in a bottom width of 0.4m and a depth of 0.6m with a slope rate of 1:1. Cast‐in‐site C30 reinforced concrete in a thickness of 0.2m shall be used for drainage ditches. The location of drains shall ensure that the water will be led outside the subgrade to prevent it from erosion.
④ C30 reinforced concrete rectangular cover trench shall be used for side ditches in a
bottom width of 0.6m, a height of 0.8m, and a thickness of 0.25m. The drains between the lines in a standard spacing shall have a width of 0.4m, a depth of 0.8m, and a thickness of 0.20m in C30 reinforced concrete masonry. Precast C30 reinforced concrete shall be used for the cover of the side ditch. Trapezoidal side ditch shall be used for non easily weathered hard rock cutting, in a bottom width of 0.4m, a depth of not less than 0.6m and a slope rate of 1:1. M10 cement mortar in a thickness of 0.08m shall be used for the surface, and C25 concrete may be used for embedment at local sections.
⑤ In the lots where cross slope is significant on the subgrade ground, gutters may be located in the top side. If the ground cross slope is not obvious, gutters shall be located on both sides of the subgrade. 0.2m thick in‐situ C30 reinforced concrete may be used for the gutters, and M10 mortar rubble shall be used to close the sections from expansive rock (soil), collapsible loess, the top of the bed cutting to the gutter. For the gutter which has the steep slope of the cutting top, rectangular gutter shall be used.
⑥ 0.40m × 0.40m rectangular groove shall be used for the water disconnection ditch at the slope platform for the cutting, and C25 concrete which is used in the slope shall be poured.
⑦ The anti‐slope drainage of the tunnel entrance is based on the rigid transition section of the tunnel road, with the cross section of the ditch at the starting position being 0.4m deep. In the deep cutting and the lot with problems of anti‐slope drainage(if the depth of the side ditch is more than 1.50m, and the width more than 0.80m), and in the valley cutting lots, the addition of culverts and the use of 0.2m thick C30 reinforced concrete drains shall be made to lead the side ditch water out of the subgrade as soon as possible.
2) Basebed waterproofing and drainage
Collecting well shall be located in the middle of the subgrade for the drainage between the tracks of slab track sections of straight lines and curves lines. The inside diameter of the drainage well is 0.6m, the depth 0.8m, and 0.3m thick cast‐in‐site C30 reinforced concrete is used. Precast C30 reinforced concrete is used for the cover spaced 50m or so, which are embedded into the drainage channels or side trenches for the slope of subgrade.
3) Groundwater waterproofing and drainage facilities
Drainage facilities such as open ditches, slope support sewers and porous drains shall be located where underground water brings hazards to the subgrade according to its nature and characteristics. Drainage shall be particularly designed for swelling rock (soil) cutting and underground water development cutting.
4) Connection between drainage system and natural system
The drainage system of subgrade main project uses its drains with devices such as wells and settling ponds by being connected to the existing ditches or channels around.
The subgrade slope protection, slope greening measures, drainage works, protective area, quantity and investments of protection, etc taken in the design shall meet water security requirements, and be included in this program investment. For the quantities of soil stripped and corresponding temporary protective measures excluded in the main project list, design will be added to them in the program. Special design of green channel is made for the both sides of the line in the main works, and costs are listed to meet water conservation requirements, but detailed design has not been made in the main engineering. Therefore it is not very targeted and operable, and may not be implemented specifically in the construction process. This soil and water conservation program has detailed design for
the greening sections on both sides of the line, and quantities and investment costs of protection works based on sections have been included.
Tab l e 2 S u b g r a d e s l o p e p r o t e c t i o n mea s u r e s
N o L a n d fo rm
M i l e s t o n e A dm i n i s t r at i o n
S l o p e p r o t e c t i o n
3 ‐ d e c o l o g i c a l
s l o p e p r o t e c t i o n
T G S G2 5
F e n ce
G r e e n i n g p r o t e c t i o n
C o nc r et e b l oc k
P l a n t i n g p o o l
G r a ss
S o i ls
R i v e r l o c u s
t t r e e
C r e ep e r s
C 2 5C o nc r et e b l oc k
C 25
c o nc r et e
P l a nt i n g s o i l
F e rt i l ie z er
W a t e r o u t l e t
3 ‐ d s l op e p r ot e c ti o n
M t y p e b a g
P V C p i p e
(φ 0 . 05m )
m 2 m 2 m 3 N r / m 3 m 3 m 3 m 3 m m 2 N r
1 P l a i n C K 0 0 0 + 0 0 0 ~C K 0 0 2 + 5 7 0
Z h a n g j i a k ou 6 4 0 1 7 0 1 7 1 5 9 5 7
2 P l a i n
C K 0 0 2 + 5 7 0 ~C K 0 1 1 + 2 6 0 W a n g q u a n 2 6 7 4
9 5 2 08 5 2 1 4 8 8 7
9 2 3 5
3 P l a i n
C K 0 1 1 + 2 6 0 ~C K 0 6 8 + 3 0 0 H u a i ’ a n 4 8 8 8
4 8 4 9 70 3
4 9 72
4 7 1 57 2
1 0 27 3 2
2 0 05
9 35
3 9 31 3 9 3 1 8 6 8
4 H i l l s C K 0 6 8 + 3 0 0 ~C K 0 7 3 + 3 1 0 S h a n g y i
5 H i l l s
C K 0 7 3 + 3 1 0 ~C K 0 7 4 + 5 6 0 X i n g h e
6 H i l l s
C K 0 7 4 + 5 6 0 ~C K 0 7 6 + 9 0 0 S h a n g y i 3 6 4 3 4 2 2
7 H i l l s
C K 0 7 6 + 9 0 0 ~C K 1 2 4 + 2 1 5 X i n g h e
1 3 9 05 1
1 1 00 0 7
1 4 51 2
1 0 7 54 4 2
3 7 44 4
4 7 89
8 30
2 3 82 2 3 7 1 6 5 9
1 9 44 3
1 3 61 0 1
8 H i l l s
C K 1 2 4 + 2 1 5 ~C K 1 5 1 + 0 8 0
C h a n y o u q i an q i
2 4 2 09
2 0 30 6
4 1 86
2 0 0 45 5
1 7 55
1 0 17
1 06 3 0 9 3 1 2 1 3
9 P l a i n C K 1 5 1 + 0 8 0 ~C K 1 5 2 + 3 0 3 J i n i n g
1 0 P a i n C K 1 5 2 + 3 0 3 ~C K 1 6 0 + 7 9 6
C h a y o u q i a nq i
2 0 7 11
4 4 66 4 4 7
4 1 9 18
1 7 7 2 8 29 2
1 9 80 4 4
1 1 P a i n C K 1 6 0 + 7 9 6 ~C K 1 6 3 + 4 9 8 J i n i n g 7 7 0 0 2 6 4
8 2 6 5 2 4 8 55 3 7 9 1 0 2 4 7 1 3 9 1 4 9 5
1 2 H i l l s
C K 1 6 3 + 4 9 8 ~C K 1 7 9 + 3 1 7
C h a y o u q i a nq i
4 6 7 3 1 2 00 0
1 2 01
1 2 0 20 8
5 0 00
4 5 91 09 3 4 7 3 4 2 1 8
1 3 H i l l s
C K 1 7 9 + 3 1 7 ~C K 2 5 5 + 2 4 8 Z h u o z i
1 1 1 64 6
1 1 73 3 0
1 3 24 6
1 1 1 43 2 3
3 6 80 6
4 7 94
6 57
2 0 07 2 0 2 1 3 1 0 1 6 1
3 9 1 1 42 3 3
1 4 H i l l s
C K 2 5 5 + 2 4 8 ~C K 2 6 9 + 5 0 0 H o h h o t
5 5 5 11
2 7 71 5
3 7 73
2 6 2 27 7
8 6 65
1 1 99
1 66 4 7 6 4 7 3 3 6
1 5 P l a i n C K 2 6 9 + 5 0 0 ~C K 2 9 1 + 0 0 0
H o h h o t1 8 1 36 2
3 5 06 4
3 5 04
3 2 9 09 5
4 7 42 3
1 3 58
4 29
1 8 10 1 8 2 8 6 1
1 6 H i l l s S e c t i o n s b y
S e c o n d J i b a o l i n e
H o h h o t
1 0 5 3 2 4 07
2 4 1 2 2 5 99
1 1 08
1 7 P l a i n
S e c t i o n b y J i n g b a o
l i n e ( d o u b l e l i n e )
H o h h o t
5 7 0 12
1 6 71 1
1 6 72
1 5 6 85 1
4 8 77 9
T o t a l 1 1 1 91 6 5
4 0 37 7 1
4 8 56 1
3 8 7 04 1 1
2 4 02 0 4
6 6 03 1
3 27 9
1 1 40 1
1 1 40 6 5 6 0 6 4 0
5 4 4 4 83 7 8
( C o n t i n u e d )
N o L a n d fo rm
M i l e s t o n e A dm i n i s tr a t i o n
S l o p e p r o t e c t i o n R e i n fo r c e
I n t e r c e p t i o n s t r u c t u r e s l o p e p r o t e c t i o n
C o n c r e t e(w i n d ow t y p e)wa l l
G e o te x t i le , e t cs
G r o o v i n g
C 2 5 C o n cr e t e
M 1 0c o n cr e t e s t r uc t u re
W a l l b o d y
F i lt e r l a ye r
W a t e r o u t l e t
E x p an s i on
j o i n t
S o i l S t o ne M 1 0
C 2 5
c o n cr e c t e b l o ck
S an d/ g ra bb l e
P V C 管
(φ0 .1m)
A l p ha l t l i n en
( 0 .0 2m)
m 3 m 3 m 3 m 3 m 3 m 3 m 3 m m 2 m 2
1 P l a i n C K 0 0 0 + 0 0 0~CK 0
0 2 + 5 7 0 Z h a n g j i a k
o u 4 8 4 9 3 9 4
2 P l a i n
CK0 0 2 + 5 7 0~CK 01 1 + 2 6 0
W a n g q u an 2 8 2 2 8 3
1 5 2 42
3 P l a i n
CK0 1 1 + 2 6 0~CK 06 8 + 3 0 0
H u a i ’ a n 1 5 8 71
6 3 1 6 0 05
2 6 6 19 9
4 H i l l s C K 0 6 8 + 3 0 0~CK 0
7 3 + 3 1 0 S h a n g y i
5 H i l l s
CK0 7 3 + 3 1 0~CK 07 4 + 5 6 0
X i n g h e
6 H i l l s
CK0 7 4 + 5 6 0~CK 0 S h a n g y i 1 7 6
7 6 + 9 0 0
7 H i l l s
CK0 7 6 + 9 0 0~CK 12 4 + 2 1 5
X i n g h e 2 6 6 62
5 4 8 13 2 2 72
3 6 3 90 2
8 H i l l s C K 1 2 4 + 2 1 5~CK 1
5 1 + 0 8 0 C h a n y o u q
i a n q i 4 8 3 1 6 6 8 5 5 2 06 8 2 26
9 P l a i n
CK1 5 1 + 0 8 0~CK 15 2 + 3 0 3
J i n i n g
1 0 P l a i n
CK1 5 2 + 3 0 3~CK 16 0 + 7 9 6
C h a y o u q ia n q i 1 6 2 7 1 6 3 4 7 2 3 8
1 1 P l a i n
CK1 6 0 + 7 9 6~CK 16 3 + 4 9 8
J i n i n g 6 2 7 6 3 0 1 6 7 12
1 2 H i l l s
CK1 6 3 + 4 9 8~CK 17 9 + 3 1 7
C h a y o u q ia n q i 9 2 3 2 1 7 1 3 1 0 8
4 1 7 64
1 3 H i l l s
CK1 7 9 + 3 1 7~CK 25 5 + 2 4 8
Z h u o z i 3 0 4 73 2 2 1 5
3 2 8 35 8 5 7 8 4 5
2 99 2 5 8 9 8 9 7
3 8 1 68 7
1 4 H i l l s
CK2 5 5 + 2 4 8~CK 26 9 + 5 0 0
H o h h o t 9 3 3 1 3 5 9 4 0 97 9 1 56
1 5 P l a i n C K 2 6 9 + 5 0 0~CK 2
9 1 + 0 0 0
H o h h o t2 2 7 96
2 3 9 21
2 4 4 17 3
1 6 H i l l s S e c t i o n s b y S e c o n d J i b a o l i n e
H o h h o t1 2 2 8 2 9 9 8
1 7 P l a i n S e c t i o n b y J i n g b a o l i n e ( d o u b l e l i n e )
H o h h o t6 0 4 3
1 0 3 89
T o t a l 1 2 0 11 5
1 1 2 60
1 2 5 66 6
1 3 3 87
8 5 7 8 4 5 2 99
2 5 8 9 8 9 7 1 4 8 48 6 9
Table 3 Subgrade Drainage Protection Measures`
No Landform
Milestone Administration
Ground drainage ditch Water
collection well
Side ditch Side ditch platform drainage ditch Gutter Joint
Well body
Cover
C30
Concrete
M10 cement
surfacing(0.05m)
M10
M10 cement
surfacing (0.05m)
M10C30 Concrete
Soils M10C30 concrete
Soils Soils M10C30Concrete
C30Concrete
(m3)
(m2
) (m3)
(m2
) (m3)
(m3)
(m3)
(m3)
(m3)
(m3
) (m3)
(m3)
(m3)
(m3)
1 Plain CK000+000‐CK002+570
Zhangjiakou 17 12 12 27
2 Plain
CK002+570‐CK011+260
Wangquan 938
2095 9 1
3 Plain
CK011+260‐CK068+300
Huai’an
4949
9313
3479
12327
18884 408 279
1 6355 8093
1491 158 19
4 Hills CK068+300‐CK073+310
Shangyi
5 Hills
CK073+310‐CK074+560
Xinghe
6 Hills
CK074+560‐CK076+900
Shangyi 15 10 6 13
7 Hills
CK076+900‐CK124+215
Xinghe 23246
16864 71
4613
6643
10643
23952
2847 30 209 22
8
Hills CK124+215‐CK151+080
Chanyouqianqi
4432
2457 3211
1489
355 541
2361
5228 232
39 5
9 Plain CK151+080‐CK152+303
Jining
10 Pain CK152+303‐CK160+796
Chayouqianq
i 445 696
298
4
11 Pain CK160+796‐CK163+498
Jining 1218
341 297 465 411 1972 199 10 1
12
Hills CK163+498‐CK179+317
Chayouqianq
i
2999 3090
1715 2504 113 333 399
1357 3055 170 48 23 2
13 Hills
CK179+317‐CK255+248
Zhuozi 25114
13720 3477 201
8544
9453 272
12214
234839
4051 100 220 18
14 Hills
CK255+248‐CK269+500
Hohhot
4220
2398
1100
737 2353
2142
3322 1008
550 45 6
15 Plain CK269+500‐CK291+000
Hohhot 550
3 4084
10941
15480
723 1604 6633
102 11
16 Hills Sections by Second Jibaoline
Hohhot 574
66
99 96
460 653 41
17 Plain
Section by Jingbao
line(double line)
Hohhot 116
8 1197
7176
10531
42
74 4515
3075
2.2 Plant protection measures for both sides of the subgrade
In order to improve the environmental quality of the project area, reduce soil erosion caused by railway construction, while achieving the purposes of soil and water conservation, afforestation and beautification as well as the protection of railway operational safety, protection of plant measures shall be made for the both sides of the subgrade. Based on the site conditions in climate, soil, and water, the available lots on both sides of the subgrade within the land in the project may be greened under the principle of "trees and shrubs integrated", and green protective measures may not be taken for the lots without the space for green.
Green protective measures shall be taken for the available lots within the boundary of the land on both sides of the line with the total length of the green lots being 99.23km. A combination of planted bushes and trees will be taken for Hebei section, and shrubs will be planted in the Inner Mongolia section. Specific green measures for the Hebei section will be the following: one row of trees and two rows of shrubs will be planted at either side of the subgrade lot; three rows of shrubs planted on both sides of the cutting lot; the tree spacing will be 3.0×1.0m, shrub spacing 1.0m×1.0m; for the Inner Mongolia, the specific measures will be the following: three rows of shrubs will be planted on either sides of the subgrade lot in a spacing of 1.0m×1.0m. A total of 10,696 trees and 1,747,256 shrubs will be planted on both sides of the subgrade areas along the whole line.
Table 4 Greening along subgrade
No
Landform Milestone Administr
ation Subgrade length(km)
Greening quantity
Trees Bushes
1 Plain CK000+000~CK002+
570 Zhangjiako
u 0.02 15 268
2 Plain
CK002+570~CK011+260
Wangquan 0.87 577 10392
3 Plain
CK011+260~CK068+300
Huai’an 15.16 10104 181867
4 Hills CK068+300~CK073+
310 Shangyi 0.00 0 0
5 Hills
CK073+310~CK074+560
Xinghe 0.00 0 0
6 Hills
CK074+560~CK076+900
Shangyi 0.01 0 180
7 Hills
CK076+900~CK124+215
Xinghe 22.27 0 400775
8 Hills CK124+215~CK151+
080 Chanyouqi
anqi 3.88 0 69777
9 Plain
CK151+080~CK152+303
Jining 0.00 0 0
10 Plain
CK152+303~CK160+ Chayouqia 2.61 0 47003
796 nqi
11 Plain
CK160+796~CK163+498
Jining 0.95 0 17092
12 Hills
CK163+498~CK179+317
Chayouqianqi 2.37 0 42713
13 Hills
CK179+317~CK255+248
Zhuozi 23.39 0 420965
14 Hills
CK255+248~CK269+500
Hohhot 4.50 0 80953
15 Plain CK269+500~CK291+
000
Hohhot16.77 0 301831
16 Hills Sections by Second Jibaoline
Hohhot0.65 0 11653
17 Plain Section by Jingbao line(double line)
Hohhot8.99 0 161787
Total 102.42 10696 1747256
(1) Temporary block and drainage measures for the subgrade stripped topsoil
During the filling works of the railway subgrade, as the surface soil fails to meet the requirements of subgrade filling in the engineering design, the topsoil must be stripped. The thickness of this surface soil is generally about 30cm. It has high content of humus, featuring good soil fertility, structure and texture. It is suitable for vegetation growth and may be used in the topsoil transformation for the subgrade slope green of grid, station and ballast along the railway.
According to the state of the environment in the project area, combined with the engineering characteristics, the land, woodland and grassland occupied by the subgrade are designed to have topsoil stripping in a strip thickness of 0~30cm, and a temporary stockpiling field is designed every 500~1000m in the land, where the stripped topsoil will be piled up and compacted. Retaining wall made of straw bags will be used as temporary protection at the foot of the outside slope surrounding the stockpiled soil, and other exposed surfaces will be covered with tarpaulin to prevent wind transport. Temporary drains will be dug at the border of the stockpile soil, temporary settling basin will be constructed at the outlet, and connected with the surrounding drainage system, so that the rainfall runoff may be discharged through the outlet and the simple settling basin to prevent soil erosion in the temporary stockpiling field.
The stockpiling height of the temporary stockpiling filed shall not be higher than 3.0m, and the stacked slope rate shall be controlled within 1:1.5. The straw bag retaining wall section shall be a rectangular trapezoidal cross‐section in height × top width ×bottom width = 1.0m × 0.5m × 1.5m. When piling, the bags shall be engaged and lapped in a lap length not less than 1/3 of the length of the straw bag. The temporary drains shall be soil drains with a trapezoidal cross‐section, whose design specifications are base width of 0.3m, top width of 0.9m, ditch depth of 0.3m and slope rate of 1:1. The ditch base and wall shall be compacted. The simple settling basin shall have a length of 2.0m, a width of 1.0m, and a depth of 1.5m,
with its bottom compacted. A total of 89.57 × 104m3 topsoil used in the new soil grass of subgrade slope are stripped for the subgrade across the line.
Table 5 Temporary protection and drainage design for top soil from subgrade area
No
Landform
Milestone Administration
Topsoils(m3
)
Soil cover(m3
)
Length
(m)
Soil bags(m3
)
Paulin(m2
)
Temporary drainage
(m3
)
Temporary settling tank
1 Plain CK000+000~CK002+570 Zhangjiakou 0 0 0 0 0 0 0
2 Plain
CK002+570~CK011+260 Wangquan 10060 10060 409 409 4024 0 0
3 Plain
CK011+260~CK068+300 Huai’an 182420
182420
6960 6960 72968 0 0
4 Hills CK068+300~CK073+310 Shangyi
14980 14980 610 610 5992 434 3 Hills CK074+560~CK076+900 Xinghe
5
Hills CK073+310~CK074+560 Shangyi
Xinghe
282560
282560
10901
10901 113024
7048 47 Hills CK076+900~CK124+215
6 Hills CK124+215~CK151+080 Chanyouqianqi
Jining 55376 55376 2054 2054 22150 1366 9
7 Plain
CK152+303~CK160+796
8 Plain
CK151+080~CK152+303 Chayouqianqi
Jining 0 0 0 0 0 0 0
9 Plain
CK160+796~CK163+498
10 Hills
CK163+498~CK179+317 Chayouqianqi 13844 13844 469 469 5538 334 2
11 Hills
CK179+317~CK255+248 Zhuozi 228200
228200 8629 8629 91280 5661 38
12 Hills
CK255+248~CK269+500 Hohhot 43320 43320 1600 1600 17328 1068 7
13 Plain CK269+500~CK291+000Hohhot
64980 64980 8664 8664 25992 0 0
14 Hills Sections by Second Jibaoline
Hohhot0 0 0 0 0 0 0
15 Plain Section by Jingbao line(double line)
Hohhot0 0 0 0 0 0 0
Total 895740
895740
40296 40296
358296 15911 107
3 . Pro te c t ive measures f o r S t a t i on
3 .1 S t a t i on subgrade pro te c t i on
The wa t e r a nd s o i l c ons e r v a t i on mea s u r e s f o r t h e s t a t i on i n t h i s
p r o j e c t i s ma i n l y a imed a t t h e s t a t i on s ubg r ade , wh i c h a r e r ough l y t h e
s ame a s t h e s o i l a nd wa t e r c on s er v a t i on mea su r e s f o r t h e s ubg r ade .
S l ope p r o t e c t i on o f a r c hed f r ame p avemen t , h o l l ow b r i c k s w i t h n ew
s o i l g r a s s a nd mor t a r r ubb l e d r a i n a ge d i t c h a nd po r ous d r a i n a r e u s ed
f o r t h e s ubg r ad e . I f t h e subg r ad e s l ope h e i gh t i s l e s s t h an 3 . 0m , s i x ‐
d i amond ho l l ow b r i c k s w i t h p l a n t ed g r a s s a nd Amorpha w i l l b e u s ed
f o r p r o t e c t i on , a n d a p r e c a s t c on c r e t e d r a i n a g e t a nk w i l l l o c a t ed a t
b o t h s i d e s o f t h e s l op e a t i n t e r v a l s o f 10 . 0m t o c onne c t t h e ho r i z on t a l
d r a i n a g e c h anne l s b e tween t h e t r a c k s ; i f t h e s l ope h e i gh t i s g r e a t e r
t h an 3 . 0m , 3×3m C25 c on c r e t e a r c h f r amework w i t h wa t e r
d i s c onne c t i on t ank w i l l b e u s ed i n t h e s l ope p r o t e c t i on o f t h e
subg r ad e , a nd i n t h e f r amework , s i x ‐ d i amond ho l l ow b r i c k s w i l l b e
p a v ed w i t h p l an t ed g r a s s a nd Amorpha . A l a y e r o f two ‐way s t r e t c h
p l a s t i c g e og r i d ( TGSG30 ‐30 ) w i l l b e l a i d e v e r y 0 . 6m o f t h e v e r t i c a l
h e i gh t f r om t h e f o o t o f t h e s l ope t o t h e s u r f a c e l e v e l o f t h e b a s e b ed
w i t h i n t h e l a t e r a l w i d t h o f 3 . 0m on bo t h s i d e s o f t h e s l ope ; i f t h e
subg r ad e i s f i l l e d w i t h weak wea the r ed and s l i g h t l y wea t h e r ed b r oken
r o c k s , t h e quan t i t y o f n ew s o i l s h a l l b e a dd ed i n t o t h e b l o c k .
The c u t t i n g s l op e r a t e s h a l l b e 1 : 1 . 2 5~1 : 1 . 5 f o r s i l t y c l a y , 1 : 1 . 2 5 f o r g r a v e l s o i l , a nd 1 : 1 . 25 f o r l o e s s c u t t i n g . F o r t h e s l ope whos e h e i gh t i s l e s s t h an 3 . 0m , s i x ‐ d i amond ho l l ow b r i c k s w i t h p l an t e d g r a s s a nd Amorpha i n s i d e s h a l l b e u s ed f o r p r o t e c t i on ; f o r t h e s l op e who s e h e i g h t i s g r e a t e r t h an 3 . 0m , C 25 c on c r e t e a r c h f r ame p aved w i t h s i x ‐d i amond h o l l ow b r i c k s w i t h p l an t ed g r a s s a nd Amorpha i n s i d e s h a l l b e u s ed f o r p r o t e c t i on . The s t a t i on s a r e o pen ‐ t r a i n l a you t , a nd t h e n ew s i t e s a r e g r ound s t a t i on s e x c ep t t h a t Hua i An S t a t i on i s a n e l e v a t ed one . The a v e r a ge e a r t hwork h e i gh t i n p l a i n s i s h≤ 3m (Huan An S t a t i on ) , 3m <h ≤ 5m (U l an chabu S t a t i on ) , a nd i n h i l l y a r e a i s 5m <h ≤ 7m (X i n gh e i b e i S t a t i on ) . F u l l s l op i ng d r y s t one r e v e tmen t i s u s ed f o r t h e s l op e p r o t e c t i on o f X i n gh e S t a t i on and U l an chabu S t a t i on , wh i ch i s n o t i n c l uded i n t h e s o i l a nd wa t e r c on s e r v a t i on eng i n e e r i n g mea su r e s .
3 .2 Green ing measure s i n t he s ta t i on area
The r e a r e t h r e e n ew s t a t i on s a c r o s s t h e l i n e , w i t h T runk o f t r e e so z i S t a t i on a nd T runk o f t r e e so z i E a s t S t a t i on unde r t h e c on s t r u c t i on b e i n g i n t e g r a t e d f o r l o c a t i on s . I n o rd e r t o ma i n t a i n s o i l a nd wa t e r a n d b e au t i f y t h e s t a t i on a r e a e nv i r onmen t , t o imp rove e c o l o g i c a l e nv i r onmen t qu a l i t y o f t h e s t a t i on a r e a , a nd t o mee t t h e p r oduc t i on and ope r a t i n g c ond i t i o n s , 2 0% o f t h e n ew p e rmanen t s i t e i n t h e s t a t i on a r e g r e ened i n l i n e w i t h t h e p r i n c i p l e o f mu l t i p l e g r e en . Th ey a r e ma i n l y l o c a t ed a t t h e s u r r ound i ng o f t h e n ew bu i l d i n g s a t e a c h s t a t i o n and o t h e r open s p a c e a v a i l a b l e f o r c on c en t r a t e d g r e en . T r e e s , s h rub s , f l owe r i n g s h rub s and g r a s s a r e i n t e g r a t ed , i n a g r e en r a t i o o f 30% by t r e e s , s h r ub s 30% , f l owe r i n g s h rub 20% , a nd g r a s s 20% , l a i d a c c o rd i n g t o t h e p r i n c i p l e o f 3 ×3m f o r t r e e s a nd 1 × 1m f o r s h rub s . I n t h e n ew s t a t i on s , a s Hua i An S t a t i on i s a n e l e v a t ed one , g r e en d e s i gn i s c ons i d e r ed f o r i t s a r e a s a v a i l a b l e f o r g r e en a t t h e r o ad s i n t h e s t op s . The p r opo r t i on o f s h rubs , f l owe r i n g s h r ub s and l awns i s 30% , 30% and 40% r e spe c t i v e l y . The s h rub s a r e l a i d i n 1× 1m . A t o t a l o f 3 , 523 t r e e s , 34 , 898 s h rub s , 9 , 5 32 f l owe r s a nd 4 , 958m2 p a v ed t u r f a r e p l an t ed i n t h e s t a t i on s a c r o s s t h e l i n e .
Tab le 6 Green ing measures i n t he s t a t i on area
No
Land fo rm
S t a t i on M i l e s t on
e ( c en t e r )
G r e en i ng a r e a(m2
)
G r e en i n g
T r e e s Bu sh G r a s s(m2)
F l owe rs
(m2)
1 P l a i n Hua i ’ a n S t a t i o n
CK043+075
10633
0 3190 4253 3190
2 H i l l s X i n ghe Nor t h S t a t i o n
CK099+400
30560
1019 9168 204 1834
3 P l a i ns
U l an chabu
S t a t i o n
CK159+270
54933
1831 16480 366 3296
4 H i l l s Z huo z i E a s t
S t a t i o n
CK207+200
20200
673 6060 135 1212
To t a l 116327
3523 34898 4958 9532
3 .3 Temporary b lock protec t ion and temporary drainage measures for s tr ipped topso i l in the s tat ion area
22 . 25 × 104m3 s t r i pp ed t op s o i l i n t h e n ew s t a t i on s a c r o s s t h e l i n e i s
u s ed f o r t h e l a t t e r s t a g e g r e en i n t h e s t a t i on . T h e s t r i pped t op so i l
wi l l b e d e s i gned t o b e p i l e d i n t h e t empor a r y s t o ckp i l i n g s i t e i n t h e
s t a t i on a r e a , a nd t h e y w i l l b e c ompac t ed . R e t a i n i n g wa l l made o f
s t r aw b ag s w i l l b e u s ed a s t empo ra r y p r o t e c t i on a t t h e f oo t o f t h e
ou t s i d e s l ope s u r r ound i ng t h e s t o c kp i l e d s o i l , a nd o t h e r e xpo s ed
su r f a c e s w i l l b e c o v e r ed w i t h t a r p au l i n . T empo r a r y d r a i n s w i l l b e dug
a t t h e bo rde r o f t h e s t o c kp i l e s o i l , t empor a r y s e t t l i n g b a s i n w i l l b e
c on s t r u c t e d a t t h e o u t l e t o f t h e d r a i n s , a nd c onne c t ed w i t h t h e
su r r ound i n g d r a i n a g e s y s t em .
The s t o c kp i l i n g h e i gh t o f t h e t empora r y s t o c kp i l i n g f i l e d s h a l l n o t b e
h i gh e r t h an 3 . 0m , a nd t h e s t a c k ed s l ope r a t e s h a l l b e c on t r o l l e d
w i t h i n 1 : 1 . 5 . T h e s t r aw b a g r e t a i n i n g wa l l s e c t i on s h a l l b e a
r e c t angu l a r t r ap e zo id a l c r o s s ‐ s e c t i on i n h e i gh t × t op w i d th ×bo t t om
w id th = 1 . 0m × 0 . 5m × 1 . 5m . When p i l i n g , t h e b a g s s h a l l b e e nga g ed
and l a pp ed i n a l a p l e n g t h no t l e s s t h an 1 /3 o f t h e l e n g t h o f t h e s t r aw
ba g . Th e t empor a r y d r a i n s s h a l l b e s o i l d r a i n s w i t h a t r ap e zo i d a l
c r o s s ‐ s e c t i on , who s e d e s i gn s p e c i f i c a t i on s a r e bo t t om w id th o f 0 . 3m ,
t op w i d t h o f 0 . 9m , d i t c h d ep th o f 0 . 3m and s l ope r a t e o f 1 : 1 . The d i t c h
b a s e and wa l l s h a l l b e c ompac t ed . Th e s imp l e s e t t l i n g b a s i n s h a l l h a v e
a l e n g t h o f 2 . 0m , a w i d t h o f 1 . 0m , a nd a d ep t h o f 1 . 5m , w i t h i t s b o t t om
c ompac t ed . The s t r i p ped t op s o i l i s u s ed i n t h e s u r f a c e s o i l
t r an s f o rma t i on o f g r e en a r e a i n t h e s t a t i on .
Tab le 7 Tempora ry pro t e c t i on and dra inage des i gn f o r s t a t i ons
No
L andf o rm
S t a t i on M i l e s t one
Topo so il s
(m3)
S o i l c o v er
(m3)
L eng th(m)
S o i l b a g s(m3)
P au li n
(m2)
T emp .
d r a in age
(m3)
T emp . S e t tl i n g t ank
1 P l a in
Hua i ’ a n S t a t i o n
CK043+075
29500
29500
1118
1118
11800
0 0
2 H i l l s X i n gh e No r th S t a t i o n
CK099+400
45840
45840
1801
1801
18336
1012
4
3 P l a in
U l an chabu
S t a t i o n
CK159+270
38252
38252
1496
1496
15301
0 0
4 H i l l s Z huo z i S t a t i o n
CK207+200
27840
27840
1301
1301
11136
652 2
5 P l a in s
Hohho t S t a t i o n(ya rd)
CK289+273
27000
27000
1064
1064
10800
0 0
6 P l a in s
Hohho t S t a t i o n(U t i l i t y Y a r d)
CK291+000
54100
54100
2044
2044
21640
0 0
To t a l 222532
222532
8824
8824
89013
1664
6
Tab le 8 Main Pro t ec t i on Measures f o r S ta t i on s
S t a t i on
S t a t i o n s ubg r ade r e i n f o r c e
G eo t e x ti l e
G r a s s in g
R i v e r l o cu s t t r e e
S o i l s
C on c r et e
s t r u c t ur e
s h ou l de r
M10 c emen t s u r f a c i
n g
C25 Con c r e t
e
M7 . 5 C on c r e
t e
C30 Con c r e t
e
Un i t s m 2 m 2 / m 3 m 3 m 2 m 3 m 3 m 3
Hua i ’ a n S t a t i on
X i n ghe No r t h S t a t i o n 34269 1073 18
U l an chabu S t a t i on 54308 1518 26
Zhuoz i E a s t S t a t i on 37972 1190 20
Hohho t S t a t i on(ya rd) 1 40463 11866 76284 1187 3044 9202 1268
Hohho t S t a t i on(Ut i l i t y Y a rd) 1 0382 67085 1229 1000 3023 2493 2784
S t a t i on
S t a t i on d r a i n a g e s y s t em
S i d e d i t c h o f s u g r ade D r a i n a g e D r a i n a ge o r g u t t e r J o i n t
E a r t h wo rk quan ti t y
S i d e d i t c h l e n g th
C30 C on c re t e
S i d e d i t c h p l a t f orm M10
c on c r et e
L ength
M7 . 5 Con c re t e
D r a i n age
l e n g t h
C30 C on c re t e
F ounda ti on e a r t h work
E a r t h wo rk quan t i
t y
M10 C on c re t e
Un i t s m 3 m m3 m 3 m m 3 m m3 m 3 m 3 m 3
Hua i ’ a n S t a t i on
X i n ghe No r t h S t a t i on 1925 4015 955 440 470 846 2915 1437 7288 825 220
U l an chabu S t a t i on 1732 800 955 440 1165 1049 3600 1952 9900 743 220
Zhuoz i E a s t S t a t i o n 1745 700 865 419 543 489 1875 1371 6953 748 179
Hohho t S t a t i on(ya rd)
1 1802
6744 5852 2833 2070 1863 5212 2570 13030 5058 1213
Hohho t S t a t i on(Ut i l i t y Y a rd)
3 490 3141
4 . Cont ro l Measure s i n t he Br idge and Cu lver t Works Area
4.1 Br idges and culver t s se t -up and des ign requirements
The f l o od f r equen c y o f b r i d g e s a nd c u l v e r t s i s d e s i gned t o b e 1 /100
f o r b r i d g e s , a nd 1 /100 f o r c u l v e r t s . I n p r i n c i p l e , o n e b r i d g e ( c u l v e r t )
i s s e t up f o r one r i v e r ( d i t c h ) , a nd t h e r i v e r c h anne l s h a l l n o t b e
c ompre s s ed , s o t h a t t h e wa t e r may g o t h r ough t h e b r i d g e i n a n a t u r a l
s t a t e ; whe r e r o ad s a r e c r o s s i n g , i n t e r ch ange may b e u s ed ; i n t h e
f a rm i ng ‐ i n t en s i v e a r e a s , f a rm l and c hanne l s h a l l b e l o c a t ed ; v e r t i c a l
d r a i n s s h a l l b e l o c a t ed w i t h i n t h e b r i d g e , a nd c onnec t e d w i t h t h e
d r a i n age s y s t em i n t h e s ubg r ade s o a s t o l e ad t o t h e wa t e r i n t h e s i d e
d i t c h e s o f t h e s ubg r ade t o t h e n a t u r a l d i t c h e s unde r t h e b r i d g e . M10
mor t a r r ubb l e p av i n g p r o t e c t i on s h a l l b e a d op t ed .
P e rmeab l e s o i l s h a l l b e u s ed t o f i l l t h e c one p a ck i n g o f t h e b r i d g e
an c i l l a r y wo rk s and b e c ompac t ed , a nd 35 cm t h i c k M20 mor t a r r ubb l e
sh a l l b e u s ed i n t h e p r o t e c t i on o f s l ope w i t h a 10 cm t h i ck g r a v e l l a y e r
l o c a t ed b e l ow .
Fo r i nd i v i dua l l o t s whe r e r i v e r e r o s i on may b e i n c r e a s ed du e t o t h e
s e t ‐ up o f p i e r s , r e i n f o r c ed s ubg r ade a nd mo r t a r r ubb l e r e v e tmen t
mea su r e s s h a l l b e t a k en t o a vo id t h e r i v e r , f l o od e r o s i on . The b r i d g e
f ounda t i on e x c ava t i on s h a l l b e made f u l l u s e o f ; i f i t i s unab l e t o u s e ,
s p o i l f i e l d s h a l l b e s e l e c t ed f o r c on c en t r a t ed s po i l t o r e du c e s o i l
e r o s i on .
The f ounda t i on o f t h e ma i n p i e r c r o s s i n g t h e r i v e r s h a l l u s e i s l a nd o r
c o f f e rd am c on s t r u c t i on and s h a l l a v o i d f l o od . C omp l e t e c l e anup sh a l l
b e c on s i d e r ed a f t e r t h e c on s t r u c t i on t o e n su r e t h e smoo th wa t e r f l ow .
4.2 Br idge and culver t protec t ive measures
( 1 ) The f l o od f r equen cy o f 1 /100 i s u s ed i n t h e d e s i gn o f t h e b r i d ge
and c u l v e r t t o ma i n t a i n t h e app rop r i a t e t e chn i c a l r e qu i r emen t s ; f o r
t h e c h e c k c a l c u l a t i on o f e x t r a l a r g e b r i d g e ( o r l a r g e b r i d g e ) wh i c h i s
t e c hn i c a l l y c omp l e x , d i f f i c u l t t o r e p a i r o r v e r y impor t an t , t h e f l o od
f r e quen c y i s 1 /300 ; f o r t h e b r i d g e c l o s e t o t h e up s t r e am r e s e r vo i r ,
c h e ck c a l c u l a t i on w i l l b e made a c c o rd i ng t o t h e r e s e r vo i r d am b r e ak
f l ow .
( 2 ) Na tu r a l r i v e r c h anne l s h a l l b e a vo i d ed f r om c ompre s s a nd d i t ch e s
f r om change when c r o s s i n g t h e r i v e r c h anne l f o r f l o od d i s c ha r g e s o a s
t o ma i n t a i n t h e n a t u r a l r un ‐ o f f s t a t e a nd t o en su r e smoo th f l ow o f
f l o od d i s c ha r g e . S t r e am l i n ed p i e r s s h a l l p r e f e r ab l y b e u s ed i n t he
r i v e r c h anne l t o r edu c e t h e wa t e r ‐ b l o c k i n g a r e a o f t h e p i e r , a nd a vo id
i n c r e a s ed e r o s i on , a s we l l a s t o r edu c e t h e impa c t on t h e up s t r e am
and d owns t r e am s l ope s o f t h e b r i d g e s i t e a nd t o a vo id s o i l e r o s i on .
( 3 ) F l ood d i s c ha r g i n g c apa c i t y i s f u l l y c on s i d e r ed i n t h e d e s i gn o f t h e
d i ame t e r o f t h e c u l v e r t t o a vo i d t h e wa t e r r e s t r a i n o f t h e c u l v e r t
c au s ed b y t h e sma l l a p e r t u r e , r e su l t i n g i n s o i l e r o s i on c au s ed b y
i n c r e a s ed d owns t r e am e r o s i on .
( 4 ) Fo r t h e p i e r l o c a t e d i n t h e d i t c h o r i n t h e wa t e r , c o f f e r d am made o f
s t r aw bag s f i l l e d w i t h s o i l o r s t e e l s h e e t p i l e c o f f e rd am i s u s ed b a s ed
on t h e wa t e r d ep th i n t h e c on s t r u c t i on and g eo l o g i c a l c ond i t i on s , a nd
t h e p r o t e c t i on o f t h e s e c t i on s whe r e t h e wa t e r l e v e l i s h i gh and t h e
f ounda t i on l a y e r i s s t r ong l y p e rmeab l e s h a l l b e p a i d a t t e n t i on t o i n
t h e c on s t r u c t i on .
( 5 ) Dur i ng t h e c ons t r u c t i o n , t h e s po i l g e ne r a t ed i n t h e b r i d g e f o unda t i on
c on s t r u c t i on s h a l l b e kno ck ed i n t o t h e p i l e f o unda t i on i f p e rm i t t e d b y
c ond i t i on s ; a bu tmen t c one s l ope s h a l l b e p r o t e c t ed by M20 c emen t
mo r t a r r ubb l e .
Tab le 9 Br idge and v iaduc t protec t i on measures
No
L andf o rm
M i l e s t one Adm in i s t r a t i o
n
Cone p r o t e c t i on Cons t r u c t i
on p r o t e c t i on
M20 Con c r e
t e(m3)
M10 C on c r e
t e(m3)
S o i l we i r(m3
)
S t e el
we i r(Number)
1 P l a i n CK000+000~CK002+570
Z h a n g j i a k ou 125 1413
2 P l a i n
CK002+570~CK011+260
Wangqua n 110 0 0
3 P l a i n
CK011+260~CK068+300
Hua i ’ a n 1 178 10375
200
4 H i l l s CK068+300~CK073+310
S h a n g y i
5 H i l l s
CK073+310~CK074+560
X i n g h e
6 H i l l s
CK074+560~CK076+900
S h a n g y i
7 H i l l s
CK076+900~CK124+215
X i n g h e 2099 8181
14
8 H i l l s
CK124+215~CK151+080
C h an y o uq i a n q i 5 45 35300
0
9 P l a i n CK151+080~CK152+303
J i n i n g
10
P a i n CK152+303~CK160+796
C h a yo uq i a nq i 1 37 0 0
11
P a i n CK160+796~CK163+498
J i n i n g 9 5 0 0
12
H i l l s CK163+498~CK179+317
C h a yo uq i a nq i 4 04 0 0
13
H i l l s CK179+317~CK255+248
Z huo z i 3 803 5267
8
14
H i l l s CK255+248~CK269+500
Hohho t 8 62 0 9
15
P l a i n CK269+500~CK291+000
Hohho t480 273 0 0
16
H i l l s S e c t i o n s b y
S e c o nd J i b a o l i n e
H ohho t
1 P l a i n S e c t i o n b y H ohho t
195
No
L andf o rm
M i l e s t one Adm in i s t r a t i on
Cone p r o t e c t i on Cons t r u c t i
on p r o t e c t i on
M20 Con c r e
t e(m3)
M10 C on c r e
t e(m3)
S o i l we i r(m3
)
S t e el
we i r(Number)
7 J i n g b a o l i n e ( d o ub l e
l i n e )
T o t a l 10032 273 60536
231
4 .3 Temporary protec t ion measures for bridge and v iaduct
(1 ) Tempora ry measure s to dea l wi th bored p i l e f ounda t i on mud
f o r t he br idge
To m in im i z e t h e po l l u t i o n o f t h e wa t e r qua l i t y o f t h e r i v e r s a l ong t h e
l i n e b y t h e b r i d g e d r i l l i n g mud , b o r ed p i l e f o unda t i on o f t h e b r i d g e
c r o s s i n g r i v e r i s u sua l l y c on s t r u c t ed du r i n g t h e d r y s e a s on , a nd mud
pump i s i n s t a l l ed i n s t e e l c a s i n g b a r r e l t o r a i s e t h e d r i l l i n g mud t o
t h e l a nd TWA a t b o t h e nd s . The s l u r r y g ene r a t ed du r i n g t h e b o r ed p i l e
f o unda t i on c on s t r u c t i on s h a l l b e t empor a r i l y p r o c e s s ed t o r edu c e s o i l
e r o s i on d u r i n g c on s t r u c t i on .
The r e a r e a t o t a l o f two b r i d ge s wh i ch c r o s s a r i v e r a nd po s s e s s p i e r s
i n t h e wa t e r i n t h i s p r o j e c t . The y a r e t h e e x t r a l a r g e Y anghe B r i d g e
and e x t r a l a r g e No . 4 Dahe i h e B r i d g e . B e f o r e t h e d r i l l i n g o f t h e p i e r s ,
o n e mud poo l ( s e ep age c on t r o l s h a l l b e done t o t h e mud p ond , a nd
mu l t i p l e d r i l l i n g c an b e s h a r ed ) a nd two s e t t l i n g t ank s a r e b u i l t i n t h e
t empo r a r y c on s t r u c t i on s i t e . Th ey a r e u s ed i n s e r i e s t o make t h e wa l l
p r o t e c t i on mud s epa r a t e f r om t h e b a l l a s t . The mud p r e c i p i t a t e d s h a l l
b e r e c y c l ed , a nd t h e s u r f a c e du s t a nd b a l l a s t o f t h e s ed imen t a t i on
t ank s s h a l l b e d ehyd r a t ed a t t h e d ump ing g r ound . The e f f l u en t o f t h e
s ed imen t a t i on t ank d i s ch a r g e s i n t o n a t u r a l r i v e r s t h r ough t h e n e a rby
a g r i c u l t u r a l i r r i g a t i on d i t c h e s . Du r i n g t h e d r i l l i n g a nd t h e ho l e
c l e an i n g i n t h e p i e r f ounda t i on c ons t r u c t i on p r o c e s s , mud c a r s a r e
u s ed t o t r a n spo r t t h e mud t o t h e d e s i g na t ed l o c a t i on . The e x c av a t i on
e a r t h f r om mud p oo l s a nd t h e s ed imen t a t i on p ond i s p i l e d n e a r t h e
p i e r a nd c ompac t ed . I t w i l l b e u s ed i n t h e p i e r f o unda t i on and t h e
b a c k f i l l o f t h e mud poo l s a nd t h e s ed imen t a t i on t a nk s a f t e r t h e
c on s t r u c t i on .
The v o l ume o f e a c h mud poo l i s d e s i g n ed t o b e 8m3 , a nd t h e l e n g th ,
w i d t h and d ep th t o b e 2m . The v o l ume o f e a c h s ed imen t a t i on t ank i s
d e s i gned t o b e 6m3 , t h e l e n g t h a nd w i d t h 2m , a nd t h e d ep th 1 . 5m .
Tab l e 10 Br idge s lu r ry pond and sed imen ta t i on t ank
No
L and f o rm
M i l e s t one Adm in i s t r a t i
on
S l u r ry
t a nk
S e t t l in g t a nk
1 P l a i n CK000+000~CK002+570 Z h a n g j i a k o u 2 4
2 P l a i n
CK002+570~CK011+260 Wang quan 0 0
3 P l a i n
CK011+260~CK068+300 Hua i ’ a n 4 8
4 H i l l s CK068+300~CK073+310 S h a n g y i 0 0
5 H i l l s
CK073+310~CK074+560 X i n gh e 0 0
6 H i l l s
CK074+560~CK076+900 S h a n g y i 0 0
7 H i l l s
CK076+900~CK124+215 X i n gh e 2 4
8 H i l l s
CK124+215~CK151+080 Ch a n yo uq i a nq i 2 4
9 P l a i n CK151+080~CK152+303 J i n i n g 0 0
10
P a i n CK152+303~CK160+796 C h a y ouq i a n q i 0 0
11
P a i n CK160+796~CK163+498 J i n i n g 0 0
12
H i l l s CK163+498~CK179+317 C h a y ouq i a n q i 0 0
13
H i l l s CK179+317~CK255+248 Z huo z i 1 2
14
H i l l s CK255+248~CK269+500 Hohho t 1 2
15
P l a i n CK269+500~CK291+000 Hohho t
0 0
16
H i l l s S e c t i o n s b y S e c o nd J i b a o l i n e Ho hho t
0 0
17
P l a i n S e c t i o n b y J i n g b a o l i n e ( d oub l e l i n e )
Ho hho t0 0
To t a l 1 2 24
(2 ) Tempora ry b lo ck and pro te c t i on measure s f o r excava t i on s tone
ea r th o f t he f ounda t i on f o r br idges and cu lve r t s
So i l e r o s i on i s l i k e l y t o o c cu r f o r t h e e x c a v a t i on e a r t h o f t h e b r i d g e
f ounda t i on i n t h e r a i n y o r w i ndy s e a s on . T empor a r y b l o ck a nd
p r o t e c t i o n mea su r e s s h a l l b e t a ken t o p r e v en t s o i l e r o s i on i n t h e
c ons t r u c t i on p r o c e s s .
A f t e r t h e b a l an c e o f t h e e x c a v a t i on e a r t hwork i n t h e b r i d g e
f ounda t i on a l ong t h e l i n e i n t h e p r o j e c t , a b andoned e a r t h o f 79 . 00 ×
104m3 a r e r e s u l t e d . T empora r y s t o c kp i l i n g f i e l d s h a l l b e s e t up i n t h e
l a nd o f t h e b r i d g e . The t empo r a r y s t o ckp i l i n g h e i gh t s h a l l n o t b e
h i gh e r t h an 3 . 0m , a nd t h e p i l e s l ope r a t e s h a l l b e c on t r o l l e d w i t h i n
1 : 1 . 5 . Th e s t r aw r e t a i n i n g wa l l s e c t i on s h a l l b e s e t i n t h e f o rm o f a
r e c t angu l a r t r ap e zo id a l c r o s s ‐ s e c t i on w i t h h e i gh t × t op w id th× b o t t om
w id th = 1 . 0m × 0 . 5m × 1 . 5m , a nd d u r i n g t h e p i l i n g , t h e s t r aws s h a l l
e n g age a nd l a p e a ch o t h e r , w i t h t h e l a p l e n g t h no t l e s s t h an t h e l e n g t h
o f 1 /3 o f t h e s t r aw . T empor a r y s t o c kp i l i n g s o i l s h a l l b e c en t r a l i z ed
and p i l ed i n s t r aw b l o c k p r o t e c t i on . A f t e r t h e c on s t r u c t i on , t ime l y
b a c k f i l l a nd c l e an up s h a l l b e made , a nd e x t r a e a r t h s h a l l b e
abandoned i n t ime i n t h e e a r t h f e t c h i n g f i e l d n e a rby s o a s t o a vo i d
n ew s o i l e r o s i on c au s ed b y r a i n f a l l r u no f f o r w i nd e r o s i on .
Tab le 11 Temporary measure s f o r f ounda t i on bu i l d ing f o r br idge
and v i aduc t
No
L andf o rm
M i l e s t one Adm in i s t r a t ion
D i s pos a l s o i l s(m3
)
F en c i n g & r e t a i n i n g work
S o i l b a g s(m3
)
G r a s s b a g s
G eo t ex t i l e(m2
)
1 P l a i n CK000+000~CK002+570
Z h a n g j i a k ou 15347 630 8820 6139
2 P l a i n
CK002+570~CK011+260
Wangqua n 10896
5 4109 57526 43586
3 P l a i n
CK011+260~CK068+300
Hua i ’ a n 81116 3338 46732 32446
4 H i l l s CK068+300~CK073+310
S h a n g y i 0 0 0 0
5 H i l l s
CK073+310~CK074+560
X i n g h e 0 0 0 0
6 H i l l s
CK074+560~CK076+900
S h a n g y i 0 0 0 0
7 H i l l s
CK076+900~CK124+215
X i n g h e 14046
4 5371 75194 56186
8 H i l l s
CK124+215~CK151+080
C h a n y o uq i a n qi 32915 1291 18074 13166
9 P l a i n CK151+080~CK152+303
J i n i n g 0 0 0 0
10 P a i n CK152+303~CK160+796
C h a youq i a n q i 72139 2726 38164 28856
11 P a i n CK160+796~CK163+498
J i n i n g 51758 2010 28140 20703
12 H i l l s
CK163+498~CK179+317
C h a youq i a n q i 16691 656 9184 6676
13 H i l l s
CK179+317~CK255+248
Z huo z i 15421
0 5871 82194 61684
14 H i l l s
CK255+248~CK269+500
Hohho t 70955 2703 37842 28382
15 P l a i n CK269+500~CK291+000
Hohho t43035 13906
194684 17214
16 H i l l s S e c t i o n s b y H ohho t
0 0 0 0
S e c o nd J i b a o l i n e
1 7 P l a i n
S e c t i o n b y J i n g b a o
l i n e ( d o ub l e l i n e )
H ohho t
2483 136 1904 993
To t a l 79007
8 42747
598458
316031
(3 ) Pro te c t i on measure s i n t he cons t ruc t i on o f water p ie r s
Ac co rd i ng t o t h e a c t u a l s i t u a t i o n o f t h e p r o j e c t , wa t e r p i e r s s h a l l b e
s e t u p i n t h e r i v e r f o r t h e n ew b r i d g e a c r o s s t h e r i v e r . C o f f e r d am
mea su r e s s h a l l b e t a k en a c c o rd i n g l y f o r t h e f ounda t i on i n t h e wa t e r
a c c o rd i n g t o t h e r i v e r c h anne l , wa t e r d ep t h , f l ow r a t e a n d v enues .
S t r aw c o f f e r dam and s t e e l s h e e t p i l e c o f f e r dam s h a l l b e ma i n l y u s ed
t o bu i l d i s l a nd i n t h e c on s t r u c t i on f o r t h e p r o j e c t , a nd t h e
c ons t r u c t i on p e r i od s h a l l b e a s f a r a s p o s s i b l e i n t h e d r y s e a s on . A f t e r
t h e c o f f e r d am i s u s ed t o bu i l d a n i s l a nd i n t h e r i v e r , t h e c on s t r u c t i on
sh a l l b e made i n t h e i s l a nd , a nd a l l wa s t e b a l l a s t a nd wa s t e wa t e r
g ene r a t ed i n t h e f ounda t i on e x c ava t i on s h a l l b e t r an spo r t ed t o s ho r e
t h r ough t h e i s l a nd . Th ey w i l l n o t b e l e a k ed i n t o t h e r i v e r , a nd w i l l n o t
h a v e a b i g impa c t on t h e wa t e r q ua l i t y . When t h e c on s t r u c t i on i s
c omp l e t e , t ime l y r emova l o f t h e c o f f e r d am sha l l b e made , a nd a l l
c o f f e r d am f a c i l i t i e s s h a l l b e t r a n spo r t ed t o t h e n e a r e s t d e s i gn a t e d
sp o i l s i t e f o r s t o r a g e . They s h a l l n e i t h e r b e d umped i n t h e r i v e r , n o r
f l owed i n t o t h e r i v e r d owns t r e am .
Table 12 Protec t i on measures f o r br idge and v iaduc t
No
L andf o rm
M i l e s t on e Adm in i s t r at i on
Cone p r o t e c t i on Cons t r u c t i
on p r o t e c t i on
M20 Con c r e
t e(m3)
M10 C on c r e
t e(m3)
M20 Con cr e t e(m3
)
M10 Conc r e te
(m3)
1 P l a i n CK000+000~CK0
02+570 Z h a n g j i a k o u 125
1413
2 P l a i n
CK002+570~CK011+260
Wang quan 110 0 0
3 P l a i n
CK011+260~CK068+300
Hua i ’ a n 1 178 10375
200
4 H i l l s CK068+300~CK0
73+310 S h a ng y i
5 H i l l s
CK073+310~CK074+560
X i n g h e
6 H i l l s
CK074+560~CK076+900
S h a ng y i
7 H i l l s
CK076+900~CK124+215
X i n g h e 2099 8181
14
8 H i l l s
CK124+215~CK151+080
C h a n yo uq i an q i 5 45 353
00 0
9 P l a i n CK151+080~CK1
52+303 J i n i n g
10
P a i n CK152+303~CK1
60+796 C h a yo uq i a n
q i 1 37 0 0
11
P a i n CK160+796~CK1
63+498 J i n i n g 9 5 0 0
12
H i l l s CK163+498~CK1
79+317 C h a yo uq i a n
q i 4 04 0 0
13
H i l l s CK179+317~CK2
55+248 Z huo z i 3 803 526
7 8
14
H i l l s CK255+248~CK2
69+500 Hohho t 8 62 0 9
15
P l a i n CK269+500~CK2
91+000
Hohho t480 273 0 0
16
H i l l s S e c t i o n s b y S e c o nd J i b a o l i n e
Ho hho t
17
P l a i n S e c t i o n b y J i n g b a o
l i n e ( d o ub l e l i n e )
Ho hho t
195
No
L andf o rm
M i l e s t on e Adm in i s t r at i on
Cone p r o t e c t i on Cons t r u c t i
on p r o t e c t i on
M20 Con c r e
t e(m3)
M10 C on c r e
t e(m3)
M20 Con cr e t e(m3
)
M10 Conc r e te
(m3)
T o t a l 10032 273 60536
231
5 . Cont ro l Measure s i n Tunne l Works Area
The r e a r e 25 n ew t unne l s i n a l e n g t h o f 59 . 66km bu i l t i n t h i s p r o j e c t .
The n ew t unne l s a r e c on c en t r a t ed i n t h e l o t s o f moun t a i nou s and h i l l y
a r e a s . The l onge s t t unne l i s D a j i a n shan Tunne l i n a l e n g t h o f 1 5 , 390m .
The e x c av a t i on o f t h e s e n ew t unne l s s e ek s e a r l y h o l e , a nd t o a v o i d
d e ep c u t t i n g o r h i g h s l o p e s o a s t o m i n im i z e t h e d e s t r u c t i on o f t h e
moun t a i n and t o p r e v en t s o i l e r o s i on .
I f t h e t unne l i s l o nge r t h an 500m , du a l ‐ po r t t unne l i n g w i l l b e
g ene r a l l y u s ed ; i f t h e t unne l l e n g t h i s l e s s t h an 500m , s i n g l e ‐ po r t
t unne l i n g w i l l b e g ene r a l l y u s ed . F o r G r ade Ⅳ swe l l i n g r o c k l o t s , i f
t h e e xp an s i on o f t h e r o c k i s med ium t o s t r ong a nd t h e r o ck i s s h a l l ow
bu r i ed , t h e me thod o f " t empora r y i n v e r t o f t h r e e s t ep s " w i l l b e u s ed ;
i f t h e e xpan s i on i s med ium t o s t r ong , t h e me thod o f " t empo r a r y
l a t e r a l b r a c k e t o f t h r e e s t ep s " w i l l b e u s ed ; weak e xp an s i on l o t s s h a l l
a s f a r a s p o s s i b l e u s e t h e " t h r e e ‐ s t ep me thod " t o s t r eng t h en t h e l o c k
p i n bo l t , a nd t o s t r eng th en t h e mon i t o r i n g o f mea su r emen t , s o a s t o
r edu c e t h e t empo r a r y s uppo r t wo rks . F o r t h e l o t s o f G r ad eⅤ
e xpan s i on r o ck , t h e s h a l l ow bu r i ed s e c t i on s h a l l a d op t t h e me th od o f
" t empor a r y i n v e r t o f t h r e e s t ep s " ; a nd t h e d e ep bu r i ed s e gmen t may
adop t t h e me thod o f " t empor a r y l a t e r a l b r a c ke t o f t h r e e s t e p s " t o
r edu c e t h e t empo r a r y s uppo r t wo rks . Th e u l t r a ‐ s h a l l ow , o r s e r i ou s l y
p r e s s u r ed l o t s o r s e c t i ons wh i c h h av e t o g o t h r ough bu i l d i n g s t h a t
r e qu i r e p r o t e c t i on sh a l l a dop t t h e me t hod o f " CRD " ; c o l l ap s i b l e l o e s s
s e c t i on s s h a l l t r y t o u s e op en ‐ c u t me thod , a nd t h e l o t s wh i ch r e qu i r e
c o v e r ed t unne l i n g s h a l l u s e t h e me thod o f " CRD" .
5 .1 Tunnel body protect ion
Tunne l e n t r an c e s h a l l b e c h o s en t o m in im i z e t h e e x c a v a t i on h e i g h t o f
t h e s i d e i n v e r t s l ope t o r edu c e t h e e x c av a t i on , a nd t h e d e s t r u c t i o n o f
l a nd and v e g e t a t i on . T op ‐d own s t r a t i f i ed e x c a v a t i on and l a y e r ed
p r o t e c t i on s h a l l b e t a k en d u r i n g t h e h o l e e a r t hwork c on s t r u c t i on . I n
c a s e o f p oo r g eo l o g i c a l c ond i t i ons , me a su r e s t o s t a b i l i z e t h e s i d e
s l op e and t h e i n v e r t s l ope s h a l l b e t a k en . Th e t unne l wa t e rp roo f i n g
a nd d r a i n a g e s h a l l f o l l ow t h e p r i n c i p l e o f " t h e c omb ina t i on o f
p r e v en t i on , d i s c onne c t i on , d i s c ha r g e and b l o c k f o r l o c a l c ond i t i on s
and i n c omprehens i v e managemen t " , i f n e c e s s a r y , t h e p r i n c i p l e o f
" b l o c k ‐ b a s ed , l im i t ed d i s c h a r g e " s h a l l b e t a k en . App rop r i a t e c on t r o l
mea su r e s s h a l l b e t a k en a c c o rd i n g t o t h e t unne l l e n g t h , wea t h e r
c ond i t i on s , t h e n a t u r e a nd d e g r e e o f d e v e l opmen t o f g r oundwa t e r t o
p r o t e c t t h e e c o l o g i c a l e nv i r onmen t . F u l l y e n c l o s ed l i n i n g o f t u nne l
e n t r anc e s o f s o i l , swe l l i n g r o ck ( s o i l ) , a nd s c h i s t f o rma t i on i s a d op t ed
f o r t h e p r o t e c t i on o f s i d e i n v e r t s l op e s a t t h e e n t r an c e ; t h e r e s t o f t h e
s t one t unne l s s h a l l b e p r o t e c t ed a t t h e e n t r an c e s and w i t h i n 2m o f t h e
f o o t o f t h e s l o pe . 3 0 cm t h i c k M15 mo r t a r r ubb l e l i n i n g s h a l l b e u s ed .
D r a i n a ge d i t c h e s s h a l l b e l o c a t ed a t t h e t unne l r o o f , w i t h t h e d i s t an c e
o f t h e d r a i n a g e d i t ch e s f r om t h e s t one a t t h e t op o f t h e s l op
e x c a va t i on l i n e n o t l e s s t h an 5m . The s o i l s h a l l n o t b e l e s s t h an 10m
s o a s t o i n t e r c ep t s u r f a c e wa t e r s o t h a t i t may b e impo r t e d i n t o t h e
subg r ad e d r a i n age s y s t em , t hu s a vo i d i n g t h e f o rma t i on o f n ew e r o s i on .
5.2 Tunnel spo i l protec t ion
The s po i l o f t h e n ew t unne l s t o t a l s 958 . 12×104m3 . Th e s po i l f i e l d
sh a l l b e s e l e c t ed t o h e ap t h e a b andoned s po i l b a s ed on t h e f a c t o r s
l i k e t opog r aph i c a l c ond i t i on s n e a r t h e t unne l a l ong t h e l i n e a nd
t r an spo r t d i s t an c e .
R e t a i n i n g wa l l s h a l l b e l o c a t ed a t t h e f o o t o f t h e s l ope f o r t h e s po i l
f i e l d , a nd p r o t e c t e d b y mo r t a r r ubb l e f o r t h e f ounda t i on . A f t e r t h e
d i s po s ab l e b a l l a s t i s c a r r i ed ou t , r e c l ama t i on a nd a f f o r e s t a t i on s h a l l
b e c ondu c t ed , a nd wa t e rp roo f i n g and d r a i n a ge f a c i l i t i e s s h a l l b e
e qu ipp ed t o p r e v en t s o i l e r o s i on , a nd r edu c e t h e impa c t f r om d r op
b a l l a s t o n t h e s u r r ound i n g env i r onmen t .
Tab le 13 Tunne l por t a l pro te c t i on and dra inage measure s
No
Land f orm
M i l e s t one Adm in i s t r a
t i o n
Tunne l
l e n g th
(m)
T unne l
numbe r
Tunne l p o r t a l , g u t t e r a nd g r e en i ng
I n t e r c ep t i on gu t t e r
D i k e G r e en i n g
C25 Con c r e t e(m3)
M10 Con c re t e
(m3)
So i l s t one
r e f i l l(m3
)
P l an t in g s o i l(m3
)
B u she s
1 P l a i n CK000+000~CK002+570 Z h an g j i a k ou
2 P l a i n
CK002+570~CK011+260 Wan gquan
3 P l a i n
CK011+260~CK068+300 Hua i ’ a n
1 5390 1 1482 1421 969 4335 4335
4 H i l l s CK068+300~CK073+310 S h a n g y i
5 H i l l s
CK073+310~CK074+560 X i n g h e
6 H i l l s
CK074+560~CK076+900 S h a n g y i
7 H i l l s
CK076+900~CK124+215 X i n g h e 5529 3 532 510 348 1558 1558
8 H i l l s
CK124+215~CK151+080 C h an y ouq i an q i 3 470 2 334 320 219 978 978
9 P l a i n CK151+080~CK152+303 J i n i n g
10
P a i n CK152+303~CK160+796 Ch a y ouq i a nq i
11
P a i n CK160+796~CK163+498 J i n i n g
12
H i l l s CK163+498~CK179+317 Ch a y ouq i a n
q i 6 602 4 636 609 416 1860 1860
13
H i l l s CK179+317~CK255+248 Z huo z i
2 7328 14 2631 2523 1721 7698 7698
14
H i l l s CK255+248~CK269+500 Hohho t 1 337 1 129 123 84 377 377
15
P l a i n CK269+500~CK291+000 Hohho t
16
H i l l s S e c t i o n s b y S e c on d
J i b a o l i n e
H ohho t
17
P l a i n S e c t i o n b y J i n g b a o l i n e ( d oub l e l i n e )
H ohho t
To t a l 5 9655
25 5743 5507 3757 1680516805
6 . Cont ro l Measure s i n Ear th f e t ch ing Area
6 .1 Earth- fe tch ing f i e ld se t -up and opt imizat ions
The e a r t h ‐ f e t c h i n g f i e l d s s e t u p a l on g t h e l i n e a r e ma i n l y f o r t h e e a r t h
f e t c h i n g o f s ubg r ade and s t a t i on , a nd t h e ma i n t ype o f l a nd i s u nu s ed
l a nd . I n t h e e a r t h e x c a v a t i on wo rk s , i n t h e s p i r i t o f t h e p r i n c i p l e o f
c onc en t r a t ed e a r t h f e t c h i n g , t h e c on s t r u c t i on s h a l l b e made i n
a c c o rdan c e w i t h t h e p os i t i on o f e a r t h ‐ f e t c h i n g f i e l d d e s i gned . T he
e xpan s i on o f t h e e x c a va t i on a r e a i s n o t a l l owed , a nd f l a y e r e a r t h i s
s t r i c t l y p r oh i b i t ed . Th e 0~30cm s u r f a c e o f t h e e a r t h ‐ f e t ch i n g f i e l d i s
p r oh i b i t ed t o b e u s ed a s f i l l . T h e s u r f a c e l a y e r s h a l l b e c l e a r ed and
s t a c k ed b e f o r e e a r t h f e t c h i n g , a nd when t h e e a r t hwork i s c omp l e t ed ,
t h en t h e y sh a l l b e b a c k f i l l e d t o t h e e a r t h p i t . E x c a v a t o r w i t h a dump
t r u ck i s u s ed t o f e t c h t h e e a r t h l a y e r b y l a y e r . I t i s p r opo s ed t h a t i f
t h e e x c av a t i on o f s o i l c omp l i e s w i th t h e r equ i r emen t s o f p a c k i n g , t h e
s l op e r a t e s h a l l b e s l owed d own , a nd t h e e a r t h e x c a v a t i on d ep th may
b e enhan ced t o r edu c e t h e p r o j e c t d i s t u rban c e a r e a . A f t e r t h e
c omp l e t i on o f t h e e a r t h f e t c h i n g , t h e s l op e o f t h e e a r t h f i e l d s h a l l b e
c u t i n a g r ad i en t o f 1 : 1 . 5 , a nd t h e s l ope s h a l l b e s l owed down t o
f a c i l i t a t e c ons t r u c t i on op e r a t i on s i n a n e c onom i c a nd s a f e way i n
p r e v en t i n g c o l l a p s e and s o i l e r o s i on . C l e an , f l a t t i n g , g r e en and o t h e r
n e c e s s a r y mea su r e s s h a l l b e t a k en . I n t h e n e x t s t a g e o f d e s i gn , e a ch
e a r t h f i e l d i s r e qu i r ed t o s i g n an a g r e emen t on f e t c h i n g and
abandon i n g o f s o i l w i t h t h e l o c a l L and and R e sou r c e s Bu r e au .
6.2 Earth fe tch ing and protect ion pr inc ip les
1 ) The c en t r a l i z e d and c l o s e e a r t h f e t c h i n g s h a l l b e c a r r i e d ou t , a nd
t h e p r i o r i t y i n t h e u s e o f t h e e x i s t i n g e a r t h f i e l d s h a l l b e made .
2 ) The s e l e c t i on o f t h e e a r t h f i e l d l o c a t i on s h a l l o b t a i n t h e
c oo rd i n a t i on o f t h e l o c a l g o v e rnmen t a nd t h e s o i l a nd wa t e r
c ons e r v a t i on a u t ho r i t y . The l o c a c a t i on s h a l l b e d e t e rm ined
t h r ough t h e c onsu l t a t i on i n t h e un i f i e d p l ann i n g o f t h e s o i l a nd
wa t e r c on s e r v a t i on d epa r tmen t b a s ed on t h e l o c a l wa t e r
r e s ou r c e s , a g r i c u l t u r a l d e v e l opmen t p l ann i ng , a nd en v i r onmen t a l
c on s t r u c t i on p l an .
3 ) Fo r t h e s l op i ng e a r t h f i e l d , a f t e r e a r th f e t c h i n g , t h e s l op e o f t h e
e x c a v a t i on a r e a s h a l l b e a d j u s t ed , t h e b o t t om sha l l b e c l e aned
and l e v e l ed , a nd g r e en mea su r e s o f s h rub p l an t i n g s h a l l b e t a k en .
4 ) Fo r t h e e a r t h f i e l d r e ad y t o r e s t o r e p l an t i n g , b e f o r e e a r t h
f e t c h i n g , t h e s u r f a c e me l l ow s o i l s h a l l b e pu sh ed a s i d e , a nd
l e v e l ed b a ck a f t e r e a r t h f e t c h i n g . R e a s onab l e t empo r a r y
p r o t e c t i v e mea su r e s s h a l l b e t a ken a c c o rd i ng t o t h e t e r r a i n o f t h e
t empor a r y dump .
6 .3 Earth f i e ld s lope cut t ing and drainage des ign
I n t h e e x c av a t i on and e a r t h f e t c h i n g , t h e e xp an s i on o f t h e d i s t u r ban c e
a r e a s h a l l b e a vo i d ed , a nd t h e l a n e i n a w i d t h o f 10m and a
l o ng i t ud i n a l s l op e r a t e o f 1 : 5 s h a l l b e r e s e r v ed f o r t h e a c c e s s o f t h e
e a r t h f e t c h i n g p i t . The l a n e s h a l l s t a y i n t h e s i d e f a c i n g t h e
c ons t r u c t i on a r e a , a nd t h e s l o pe r a t e s h a l l t a k e 1 : 1 . 5 . Th e s l ope s h a l l
b e c u t b y h a l f ‐ d ug and h a l f ‐ f i l l t o t h e l im i t o f 1 / 2 o f t h e e x c av a t i on
d ep t h . Th e uppe r e a r t h o f c u t s l ope s h a l l b e u s ed t o f i l l t h e l owe r
s l op e , a nd t h e f i l l s l o p e s h a l l b e b a c k f i l l ed and c ompac t ed l a y e r b y
l a y e r . T o i n t e r c ep t t h e s l ope r uno f f , a nd p r o t e c t t h e o v e rh ead s l op e
f o rmed d u r i n g e a r t h f e t c h i n g f r om d i r e c t l y impa c t o f w i nd and wa t e r
e r o s i on , a r e t a i n i n g r i d g e i n a h e i gh t o f 80 cm and a t op w i d t h o f 50 cm
sh a l l b e bu i l t b e yond t h e uppe r s l op i n g s hou l d e r o f t h e e a r t h f i e l d ,
a nd i n t e r c ep t i n g d r a i n s s h a l l b e l o c a t ed a t t h e ou t s i d e c l o s e t o t h e
r e t a i n i n g r i d g e s o t h a t t h e r uno f f a bo ve t h e t op o f t h e s l op e w i l l b e
c h anne l e d t o b o t h s i d e s , t h en d i s c ha r g ed t o t h e c l o s e d i t c h e s . Th e
i n t e r c ep t i n g d i t c h h a s a bo t t om w id th o f 0 . 5m , a t op w i d t h o f 1 . 5m ,
a nd a d ep th o f 0 . 6m . Th e s o i l d i t c h e s o f s em i ‐ f i l l e d a nd s em i ‐ dug
s e c t i on s h a l l b e a d op t ed and i n t e r i o r wa l l s h a l l b e c ompac t ed . B a s e
g u t t e r s i n a b o t t om w i d t h o f 50 cm , a d ep t h o f 50 cm , a nd a t op w i d t h
o f 1m s ha l l b e l o c a t ed a t 1m ou t s i d e t h e f o o t o f t h e s l op e . S o i l d i t c h e s
sh a l l b e u s ed , a nd i n t e r i o r wa l l s h a l l b e c ompac t ed . I f t h e s l o pe h a s
two p l a t f o rms , t h e p l a t f o rm sha l l b e a n i n v e r t s l op d i r e c t i n g t owa rd
i n t e r i o r s i d e , n ame l y , t h e s i d e o f t h e s e c ond s l ope , s o a s t o c r e a t e
c ond i t i on s f o r t h e c a s i n g and t h e d r a i n a g e i n t h e f u t u r e . Meanwh i l e ,
d r a i n s s h a l l b e l o c a t ed i n t h e m i dd l e p l a t f o rm and t h e f o o t o f t h e
s e c onda r y s l op e t o d i s c ha r g e t h e s l o pe r uno f f . T he wa t e r i n t h e d r a i n s
i n t h e m i dd l e p l a t f o rm w i l l f l ow down t o l e ad t h e r a i n f a l l r uno f f i n t o
n a t u r a l d i t c h e s o r t h e e x i s t i n g d r a i n a g e d i t c h s y s t em . Th e d r a i n s i n
t h e f o o t o f t h e s e c onda r y s l o pe s h a l l a dop t t h e s ame d e s i gn s t and a rd
w i t h d r a i n s a t t h e b o t t om o f t h e s l op e .
6.4 P lant protect ion measures in the ear th f i e ld
A f t e r t h e f e t c h i n g i n t h e e a r t h f i e l d i s c omp l e t ed , a nd when t h e
eng i n ee r i n g mea su r e s s u ch a s s l o pe a d j u s tmen t o f e x c av a t i on a r e a ,
l e v e l i n g a nd c l e an i ng o f t h e unde r s i d e , c a s i n g ( c a s i n g s ou r c e i s t h e
t op s o i l s t r i p ped b e f o r e e a r t h f e t c h i n g , a nd t h e c a s i n g t h i c kn e s s i s
a bou t 30 cm) , a pp rop r i a t e p l a n t p r o t e c t i o n mea s u r e s s h a l l b e t a k en on
t h e bo t t om o f t h e f e t c h i n g p i t , s i d e s l ope and p l a t f o rm . Th rough t h e
g r e en i n i t i a t i v e s o f s ow in g g r a s s s e ed , p l an t i n g s h rub s , a nd
c ons e r v a t i on and managemen t mea su r e s o f wa t e r i n g , f e r t i l i z i n g , a nd
s o i l mo i s t u r e t o e n su r e s e ed l i n g s u r v i v a l r a t e , t h e pu rpo s e s o f s o i l
a nd wa t e r c on s e r v a t i on and t h e e r o s i on c on t r o l may b e a c h i e v ed . Th e
sh r ub sp a c i n g i s 1 × 1m .
A t o t a l o f 121 . 00hm2 r eh ab i l i t a t i on a r e a w i l l b e a d op t ed f o r t h e e a r t h
f i e l d s a c r o s s t h e l i n e , 270 , 000 s h rubs w i l l b e p l an t ed , a nd 88 . 60hm2
g r a s s s e ed w i l l b e sp r e ad .
6.5 Temporary protec t ion measures o f s t r ipped topso i l in
the earth f i e ld
Be f o r e t h e f e t c h i n g i n t h e e a r t h f i e l d , t h e 0~30cm s u r f a c e l a y e r o f
me l l ow s o i l s h a l l b e s c ooped and s t a c k ed w i t h i n t h e e a r t h f i e l d . No
n ew t empora r y a r e a s h a l l b e u s ed . Th e b o t t om o f t h e s t o c kp i l e d s o i l
s h a l l b e p r o t e c t ed w i t h t empor a r y s t r aw . The su r f a c e o f t h e
t empo r a r y s t o c kp i l i n g s h a l l b e smoo th a nd c ompa c t ed a nd c ov e r ed
w i t h a t a r p t o p r e v en t t h e e r o s i on o f r a i n r uno f f . T empor a r y s o i l
d r a i n s s h a l l b e s e t up a r ound t h e f o o t o f t h e s t o ckp i l i n g s l op e , s o t h a t
t h e wa t e r c o l l e c t ed may b e d i s c h a r g ed i n t o t h e e x i s t i n g d r a i n a g e
s y s t em a r ound t o p r e v en t t h e n ew s o i l e r o s i on . A f t e r c omp l e t i o n o f
t h e e a r t h f e t c h i n g , t h e t op so i l s h a l l b e b a c k f i l l e d and l e v e l ed t o
f a c i l i t a t e t h e r e c l ama t i on and r e v e ge t a t i on .
A t o t a l o f 32 . 40×104m3 t op s o i l i s s t r i pped i n t h e e a r t h f i e l d s a c r o s s
t h e l i n e , w i t h t h e t empo r a r y b l o c k r e t a i n i n g l e n g t h o f 1 2 , 5 85m , t h e
s t r i p p i ng t op s o i l c o v e r i n g t a rp au l i n o f 1 29 , 600m2 , t empor a r y d r a i n s
o f 4 401m3 , a nd t empor a r y s e t t l i n g b a s i n s o f 3 3 .
Tab le 14 Pro te c t i on Measure s f o r Borrow p i t s
No Adm in i s t r a t i on Lo c a t i on
A r e a(hm2
)
S o i l s amoun t(m3)
R e ‐ v e g e t a t i on and p l an t i n g p r o t e c t i on T empo ra r y mea su r e s f o r s t r i pp i n g t op s s o i l s
L e v e l i ng
( hm2 )
Bu shes
G r a s s i ng(m2)
Top s o i l s
(m3)
Temp r e t a i n i ng l e n g t h(m)
S o i l s i n
b a g s(m3
)
G r a s s b a g
(Nr)
P au l i n(m2)
Temp d r a i n a ge(m3)
Temp s e t t l i ng t a nk(Nr)
1 Wanquan , T a i s h i z huang CK5+000 l e f t 5 000m 2 . 00 64212 2 . 00 0 20000 0 0 0 0 0 0 0
2 Hua i ’ a n C hun f a Company CK25+000 r i g h t 2 000m 4 . 00 185330 4 . 00 0 40000 0 0 0 0 0 0 0
3 Hua i ’ a n Nanx i n g t un CK35+500 l e f t 2 500m 6 . 67 293970 6 . 67 16667 46667 20000 727 727 10178 8000 0 0
4 Hua i ’ a n L i j i a y ao CK37+300 l e f t 3 000m 4 . 67 164408 4 . 67 11667 32667 14000 584 584 8176 5600 0 0
5 Hua i ’ a n Dukoupu , C a i j i a n t an
CK51+000 l e f t 60m 4 . 00 180000 4 . 00 10000 28000 12000 454 454 6356 4800 0 0
6 Hua i ’ a n Dukoupu , Manzhoupo
CK57+000 r i g h t 1 000m 2 . 00 81177 2 . 00 5000 14000 6000 227 227 3178 2400 0 0
7 X i n ghe , C h engguan ,
G aom i ao z i CK80+600 l e f t 1500m 2 . 67 95967 2 . 67 6667 18667 8000 357 357 4998 3200 184 1
8 X i n ghe , C h engguan , Q i j i a CK91+000 r i g h t 3 00m 1 . 00 83527 1 . 00 2500 7000 3000 156 156 2184 1200 73 1
9 X i n ghe , C h engguan ,
Mq i ao cun CK93+400 r i g h t 2 00m 1 . 00 12481 1 . 00 2500 7000 3000 156 156 2184 1200 73 1
10
X i n ghe , C h engguan , Haoq i an cun
CK99+200 r i g h t 8 00m 4 . 00 110410 4 . 00 10000 28000 12000 454 454 6356 4800 262 2
11
X i n ghe , C h engguan , Dong sh i h ao
CK103+000 l e f t 2000m 4 . 00 86408 4 . 00 10000 28000 12000 454 454 6356 4800 262 2
12
X i n ghe , M i n zu t u an j i e x i ang ,
S i h i h ao cun CK110+400 l e f t 1000m 2 . 00 45025 2 . 00 0 20000 0 0 0 0 0 0 0
13
X i n ghe , e ’ e r dong , D i an z i c un CK112+000 l e f t 200m 1 . 00 21570 1 . 00 2500 7000 3000 156 156 2184 1200 73 1
14
X i n ghe , e ’ e r dong ,
D i an z i c un CK114+000 r i g h t 200m 1 . 67 29456 1 . 67 4167 11667 5000 192 192 2688 2000 110 1
15
X i n ghe , e ’ e r dong ,
D i an z i c un CK117+000~+300 l e f t h i l l 3 . 33 46570 3 . 33 8333 23333 10000 409 409 5726 4000 224 2
16
Chayouq i anq i , P i n gd i quanzhen ,
L a i j i a d i c un CK166+100~+500 r i g h t h i l l 1 3 . 33 105476 13 . 33 33333 93333 40000 1544 1544 21616 16000 878 7
17
Zhuoz i , S h i b a t a i z h en , Yu shugou cun
CK188+000~+600 r i g h t h i l l 3 . 33 96669 3 . 33 8333 23333 10000 409 409 5726 4000 224 2
1 Zhuoz i , CK190+000~CK195+000 l e f t 6 . 67 53345 6 . 67 16667 46667 20000 727 727 10178 8000 431 3
8 Sh i b a t a i z h en , h a f en g j i n g cun
h i l l
19
Zhuoz i , Z huo z i s h an , Dong t an
CK205+100~CK206+600 r i g h t h i l l 6 . 67 54583 6 . 67 16667 46667 20000 727 727 10178 8000 431 3
20
Zhuoz i , L i hua zhen , S i d aogou
CK247+050 l e f t 2000m 4 . 00 173341 4 . 00 10000 28000 12000 454 454 6356 4800 262 2
21
Hohho t , S a i h an , Yu l i n , S h imengou
CK261+350 l e f t 3500m 14 . 00 155089 14 . 00 35000 98000 42000 1589 1589 22246 16800 916 7
22
Hohho t , S a i h an , Yu l i n , S any i n gy ao
CK267+100 r i g h t 3200m 5 . 00 86160 5 . 00 0 50000 0 0 0 0 0 0 0
23
Hohho t , S a i h an , Yu l i n , Q i anna imobancun CK274+200 l e f t 2200m 12 . 67 182043 12 . 67 31667 88667 38000 1492 1492 20888 15200 0 0
24
Hohho t , S a i h an , B a y an , T eng j i a y i n g CK280+000 l e f t 2100m 11 . 33 97144 11 . 33 28333 79333 34000 1317 1317 18438 13600 0 0
To t a l 1 21 . 00 2504360 121 . 00 27000
0 886000 324000 12585 1258
5 17619
0 12960
0 4401 33
7 . Di sposa l S i te s
7.1 Earth d i sposal s i t e
The r e a r e 18 e a r t h d i s p o s a l s i t e s , t o t a l e a r th d i s p os ed w i l l b e
4320700m3 , o c cupy i n g 54 . 8hm2 .
7 .2 Tunnel spo i l s d i sposa l s i t e
The r e w i l l b e 5 2 s po i l d i s pos a l s i t e s , t o t a l s p o i l s d i s po s ed w i l l b e
10726400m3 , o c c upy i n g 121 . 21hm2 .
7.3 Des ign o f re ta in ing wal l
On t h e p r i n c i p l e o f “ F i r s t l y r e t a i n i n g and t h en d i s c a rd i n g and
r e t a i n i n g b y g r ad i n g ” , a dop t mo r t a r f l a g s t one g r a v i t y t y pe r e t a i n i n g
wa l l p r o t e c t i on f o r s po i l g r ound .
T o d e c r e a s e a c t i v e e a r t h p r e s s u r e , i n c l i n ed t ype i s a d op t ed f o r g r a v i t y
t y p e r e t a i n i n g wa l l t h i s t ime . When d e s i gned , h e i gh t o f r e t a i n i n g wa l l
i s 4 t o 8m . When c h ange o c c u r s on h e i gh t o f wa l l , r e c t i g r ad a t i on
t r an s i t i on i s a d op t ed f o r s i z e o f wa l l b ody ; s l o pe r a t i o o f wa l l b a c k i s
1 : 0 . 25 ; wa l l s u r f a c e i s p a r a l l e l e d w i t h wa l l b a c k . R e t a i n i n g wa l l i s
a dop t ed f o r r e t a i n i n g b a s e o f b a l l a s t s l o p e . Embedded d ep th o f
f ounda t i on i s n o t l ower t h an 2 . 0m . Th e p a r t b e l ow g r ound o f wa l l
b ody i s made i n t o s t e p ‐ f o rm , t o i n c r e a s e s t a b i l i t y o f wa l l b ody ;
b a s emen t i s made i n t o r e v e r s e s l op e , t o i n c r e a s e r e s i s t i n g
o v e r t u rn i n g a b i l i t y o f wa l l b od y .
φ100 PVC p i p e i s embedded f o r r e t a i n i n g wa l l b ody and i s u s ed a s
e s c ap e ho l e , d i s t an c e i s 2m×2m . I n t e r c ep t i n g d i t c h and d r a i n a g e d i t c h
i s s e t a t b a l l a s t t o p . Bo t t om pa r t o f d i t c h mus t b e b a c k f i l l e d d en s e l y .
S e t one s e t t l emen t j o i n t e a c h 10m l ong i t ud i n a l l y f o r t h e d i t c h ; w i d t h
o f j o i n t i s 2~3cm . F o r e a r t h y sp o i l , f i l t r a t i on b ed o f c r u sh ed s t on e
w i t h w i d t h o f a bou t 500mm need s t o b e s e t b eh i nd wa l l t o f a c i l i t a t e
d r a i n a g e and a vo id e l a p s e o f f i n e s o i l i n e a r t h f i l l i n g . S e t b l i nd d r a i n
i n t h e m i dd l e o f w a l l b ody w i t h b i g g e r h e i gh t .
7 .4 Dra inage des ign
Dr a i n a g e s h a l l be p ro v i d ed a t t h e t o p and f o o t o f t h e d i s po s a l s i t e s i n
o r d e r t o t ime l y d i s c h a r g e r uno f f t o a vo i d s o i l e r o s i o n an d t h r e a t s t o t h e
r e t a i n i n g wa l l .
7 .5 Des ign o f spo i l grounds l eve l ing and earth backing
A f t e r s po i l i s c omp l e t ed , t o p p a r t o f s po i l b a l l a s t s hou l d b e l e v e l ed .
T o f a c i l i t a t e r e c o ve r y o f v e g e t a t i on , ma tu r e s o i l o f c e r t a i n t h i c kne s s
sh ou ld b e c o v e r ed on t o s o i l b ody and bu f f e r t o p a f t e r l e v e l ed ; e a r t h
b a c k i ng c omes f r om s t r i pp ed s u r f a c e s o i l o f s p o i l g r ounds .
7.6 Rec lamat ion and green ing des ign for spo i l grounds
A f t e r s i t e l e v e l i n g and e a r t h b a c k i ng work i s c omp l e t e d f o r sp o i l ,
t h r ough c omb i n i ng l o c a l a c t u a l s i t u a t i on , a dop t r e c l ama t i on mea s u r e
f o r s po i l g r ounds o c c upy i n g f a l l ow l and f o r t h e p r o j e c t a nd adop t
p r o t e c t i o n mea su r e o f g r a s s p l a n t i n g and s h r ub p l a n t i n g f o r s po i l
g r ound s o c c upy i n g t imbe r l and and no t u s i n g l a nd .
7 .7 Des ign o f t emporary reta in ing measure for s tr ipped
surface so i l for spo i l grounds
Fo r s po i l g r ound s wher e v e g e t a t i on r e c ove r y i s t o b e made , b e f o r e
s p o i l , s h ove l ma t u r e s o i l b y a bou t 0~30cm o f s u r f a c e a nd s t a c k t h em
w i t h i n t h e s c op e o f s p o i l g r ound s w i t h ou t n ew l y i n c r e a s i n g o c c up i ed
a r e a . T empora r y s t r aw b ag i s ad op t ed f o r r e t a i n i n g bo t t om pa r t o f
s t a c k ed s o i l . L e v e l a nd c ompac t s u r f a c e o f t empora r y s t a c k ed s o i l , u s e
f a b r i c f o r c ov e r i n g a nd bu i l d d r a i n ag e d i t c h f o r t empo r a r y s o i l a nd
make r a i n f a l l r uno f f i n f l u x b e f o r e make i t b e s u c c e s s f u l l y d i s c h a r g ed
i n t o s u r r ound i ng t r en ch and o t h e r e x i s t i n g d r a i n a g e s y s t em , t o a vo i d
c au s i n g n ew s o i l a nd wa t e r e r o s i on . A f t e r s po i l p r o j e c t i s c omp l e t ed ,
l e v e l s o i l b od y and bu f f e r , c o v e r s t r i p ped s u r f a c e s o i l , t o f a c i l i t a t e
l a nd r e c l ama t i on and g r e en i ng .
Tab le 15 S i t e spec i f i c managemen t o f so i l d i sposa l s i t e s
No Adm in i s t r a t i on Lo c a t i on
A r e a(hm2)
D i s pos a l
q u an ti t y
(m3)
D i s pos a l
d ep t h(m)
C l e a r an c e and
l e v e l i ng
( hm2 )
R e t a i n i n g a nd f e n c i n g
G r e en i n g T empo r a r y mea su r e s f o r s t r i pp i n g t op s s o i l s
C25 R e t a i ni n g wa l l
(m3)
C25 Con c re t e
d r a i nage(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T emp . d r a i na ge(m3
)
T emp s e t t l in g t a nk(Nr)
1 Hua i ’ a n , Dukoubao , C a i j i a n t an
CK52+100 l e f t 60m 2 . 00 150223
7 . 51 2 . 00 257 172 5000 14000
6000 227 227 3178
2400
0 0
2 X i n ghe , C h engguan , Q i n j i a a o cun
CK77+750 l e f t 400m 5 . 33 306181
5 . 74 5 . 33 606 404 13333
37333
16000
650 650 9100
6400
357 3
3 X i n ghe , C h engguan ,
Q i n j i a a o cun CK82+200 l e f t 1500m 2 . 00 15309
1 7 . 65 2 . 00 262 175 500014000 6000 227 227
3178
2400 131 1
4 X i n ghe , C h engguan ,
Q i n j i a a o cun CK83+100 l e f t 100m 2 . 00 10206
0 5 . 10 2 . 00 198 132 500014000 6000 227 227
3178
2400 131 1
5 X i n ghe , C h engguan , y angpo cun CK85+300 r i g h t 3 00m 2 . 00 15309
1 7 . 65 2 . 00 262 175 5000 14000 6000 227 227 317
8 2400 131 1
6 X i n ghe , C h engguan , y angpo cun
CK88+600 r i g h t 3 00m 6 . 67 408241
6 . 12 6 . 67 1140 760 16667
46667
20000
811 811 11354
8000
446 3
7 X i n ghe , C h engguan , Q i j i a c un
CK91+000 r i g h t 3 00m 4 . 67 255151
5 . 47 4 . 67 495 330 11667
32667
14000
584 584 8176
5600
315 2
8 X i n ghe , C h engguan ,
Maq i a o cun CK93+400 r i g h t 2 00m 2 . 00 15970
0 7 . 99 2 . 00 237 158 500014000 6000 227 227
3178
2400 131 1
9 X i n ghe , C h engguan ,
Haoq i an cun CK99+200 r i g h t 8 00m 5 . 33 42560
1 7 . 98 5 . 33 724 483 13333
37333
16000 636 636
8904
6400 354 3
10
X i n ghe , C h engguan , Dong sh i h ao cun CK103+400 r i g h t 200m 6 . 67 53260
0 7 . 99 6 . 67 257 172 16667
46667
20000 811 811 113
54 8000 446 3
11
X i n ghe , C h engguan , Dong sh i h ao cun
CK107+500 l e f t 1500m 2 . 00 159700
7 . 99 2 . 00 267 178 5000 14000
6000 227 227 3178
2400
131 1
12
Zhuoz i , S h i b a t a i , Huangq i t an cun
CK183+000~CK184+000 r i g h t 240m
4 . 00 316693
7 . 92 4 . 00 627 418 10000
28000
12000
454 454 6356
4800
262 2
13
Zhuoz i , b a y i n x i l e , D aha i c un
CK197+000~CK198+000 l ef t 山沟 4 . 00 33478
0 8 . 37 4 . 00 663 442 10000
28000
12000 454 454 635
6 4800 262 2
14
Zhuoz i , L i hua zhen , T u cheng z i CK233+500 l e f t 50m 1 . 13 53345 4 . 71 1 . 13 103 69 2833 7933 3400 176 176
2464
1360 83 1
15
Zhuoz i , Q i x i a y i n g , L vme i p i n g CK252+750 2 . 00
247022 12 . 35 2 . 00 479 320 5000
14000 6000 227 227
3178
2400 131 1
16
Zhuoz i , Q i x i a y i n g , L vme i p i n g CK254+330 0 . 67 19761
8 29 . 64 0 . 67 0 0 1667 4667 2000 130 130 1820 800 53 0
17
S i h anqu , Yu l i n zhen , S h i h aoyao
CK256+400 1 . 67 247022
14 . 82 1 . 67 479 320 4167 11667
5000 220 220 3080
2000
115 1
18
S i h anqu , Yu l i n zhen , S anhaoyao CK257+120 0 . 67
118571 17 . 79 0 . 67 0 0 1667 4667 2000 130 130
1820 800 53 0
To t a l 5 4 . 80 4320688 54 . 8 7060 4707
137000
383600
164400
6645
6645
93030
65760 3531 26
Tab le 16 Mi t i ga t i on measure s f o r spo i l s d i sposa l s i t e s
No
Spo i l s d i s po s a l s i t e a nd l o c a t i on
A r e a(hm2)
D i s po sa l
q u an t it y
(m3)
D i s po sa l
d ep t h(m)
C l e a r anc e and l e v e l i ng ( hm2 )
G r e en i n g mea su r e s R e t a i n i n g a nd
f e n c i n g T empo ra r y mea su r e s f o r s t r i pp i n g t op s s o i l s
R e ‐v e g e t a t i on (h
m2 )
Bu she s
G r a s s in g
(m2)
M10 r e t a i n i
n g wa l l (m
3 )
M10 i n t e r c ep t ion and d r a i n a ge (m3 )
Top s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T emp . d r a i n age
(m3)
Temp s e t t l in g t a nk(Nr)
1 D a j i a n shan Po r t a l e n t r an c e
393931 4 . 18 9 . 43 4 . 18 3 . 84 833 2333 3652 4173 12532
459 459 6426 5013 0 0
2 Da j i a n shan #1 sha f t 3 66082 4 . 00 9 . 16 4 . 00 3 . 86 333 933 3393 3878 11986 454 454 6356 4795 0 0
3 Da j i a n shan #2 s h a f t 488109 5 . 40 9 . 04 5 . 40 5 . 26 333 933 4525 5171 16190 668 668 9352 6476 217 3
4 Da j i a n shan #3 s h a f t 488109 5 . 32 9 . 17 5 . 32 5 . 19 333 933 4525 5171 15970 651 651 9114 6388 213 3
5 Da j i a n shan4 s h a f t 390487 4 . 60 8 . 50 4 . 60 4 . 46 333 933 3620 4137 13789
461 461 6454 5516 166 2
6 Da j i a n shan e x i t 3 41676 4 . 14 8 . 25 4 . 14 3 . 81 833 2333 3167 3620 12421
458 458 6412 4968 157 2
7 X i s h i h ao en t r an c e 102493 1 . 23 8 . 31 1 . 23 0 . 90 833 2333 950 1086 3701 154 154 2156 1481 50 1
8 X i s h i h ao e x i s t 108662 1 . 30 8 . 39 1 . 30 0 . 96 833 2333 1007 1151 3886 155 155 2170 1555 51 1
9 Da l i a nggou en t r an c e 95274 1 . 29 7 . 41 1 . 29 0 . 95 833 2333 883 1009 3857 155 155 2170 1543 51 1
10 Da l i a nggou e x i t 9 5274 1 . 29 7 . 41 1 . 29 0 . 95 833 2333 883 1009 3857 155 155 2170 1543 51 1
11 J i a b a z i e n t r an c e 270393 3 . 04 8 . 91 3 . 04 2 . 70 833 2333 2506 2864 9108 373 373 5222 3643 122 2
12 J i a b a z i e x i t 2 70393 3 . 04 8 . 91 3 . 04 2 . 70 833 2333 2506 2864 9108 373 373 5222 3643 122 2
13
X i y i n g En t r an c e 125758 1 . 43 8 . 81 1 . 43 1 . 09 833 2333 1166 1332 4282 170 170 2380 1713 56 1
14
X i y i n g e x i t 1 25758 1 . 43 8 . 81 1 . 43 1 . 09 833 2333 1166 1332 4282 170 170 2380 1713 56 1
15 L i u j i a gou en t r an c e 205184 2 . 21 9 . 27 2 . 21 1 . 88 833 2333 1902 2174 6642 232 232 3248 2657 82 1
16 L i u j i a gou e x i t 2 05184 2 . 21 9 . 27 2 . 21 1 . 88 833 2333 1902 2174 6642 232 232 3248 2657 82 1
17 Dong tukan en t r an c e 291957 3 . 40 8 . 59 3 . 40 3 . 06 833 2333 2706 3093 1019
4 411 411 5754 4078 135 2
No
Spo i l s d i s po s a l s i t e a nd l o c a t i on
A r e a(hm2)
D i s po sa l
q u an t it y
(m3)
D i s po sa l
d ep t h(m)
C l e a r anc e and l e v e l i ng ( hm2 )
G r e en i n g mea su r e s R e t a i n i n g a nd
f e n c i n g T empo ra r y mea su r e s f o r s t r i pp i n g t op s s o i l s
R e ‐v e g e t a t i on (h
m2 )
Bu she s
G r a s s in g
(m2)
M10 r e t a i n i
n g wa l l (m
3 )
M10 i n t e r c ep t ion and d r a i n a ge (m3 )
Top s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T emp . d r a i n age
(m3)
Temp s e t t l in g t a nk(Nr)
18
Dong tukan 1 s h a f t 208541 2 . 47 8 . 43 2 . 47 2 . 14 833 2333 1933 2209 7420 252 252 3528 2968 90 1
19 Dong tukan e x i t 2 50249 2 . 98 8 . 40 2 . 98 2 . 65 833 2333 2320 2651 8939 407 407 5698 3576 127 1
20 Y i yuanx i n g en t r an c e 83416 1 . 24 6 . 75 1 . 24 0 . 90 833 2333 773 884 3709 155 155 2170 1484 50 1
21 X i t uken en t r an c e 47974 0 . 81 5 . 90 0 . 81 0 . 48 833 2333 445 508 2439 152 152 2128 975 63 1
22
X i t uken e x i t 4 7974 0 . 81 5 . 90 0 . 81 0 . 48 833 2333 445 508 2439 152 152 2128 975 63 1
23
Lu j i a bu z i e n t r an c e 55967 0 . 89 6 . 27 0 . 89 0 . 56 833 2333 519 593 2678 154 154 2156 1071 64 1
24 Lu j i a bu z i e x i t 5 5967 0 . 89 6 . 27 0 . 89 0 . 56 833 2333 519 593 2678 154 154 2156 1071 64 1
25 Daba i y i n g en t r an c e 77703 1 . 11 7 . 00 1 . 11 0 . 78 833 2333 720 823 3330 190 190 2660 1332 54 1
26 Daba i y i n g e x i t 7 7703 1 . 11 7 . 00 1 . 11 0 . 78 833 2333 720 823 3330 190 190 2660 1332 54 1
27
Gonghudong en t r an c e 134163 1 . 47 9 . 10 1 . 47 1 . 14 833 2333 1244 1421 4422 200 200 2800 1769 63 1
28
Gonghudong e x i t 1 37385 1 . 54 8 . 91 1 . 54 1 . 21 833 2333 1274 1455 4628 202 202 2828 1851 64 1
29 Gu j i a pu en t r an c e 286170 3 . 19 8 . 96 3 . 19 2 . 86 833 2333 2653 3032 9581 421 421 5894 3832 133 2
30 Gu j i a pu e x i t 2 79705 3 . 13 8 . 94 3 . 13 2 . 80 833 2333 2593 2963 9387 247 247 3458 3755 101 2
31 Zhang j i a bu en t r an c e 151262 1 . 85 8 . 20 1 . 85 1 . 51 833 2333 1402 1602 5536 210 210 2940 2214 71 1
32
Zhang j i a bu e x i t 1 46358 1 . 80 8 . 15 1 . 80 1 . 46 833 2333 1357 1550 5389 210 210 2940 2155 70 1
33
Chengbuz i e n t r an c e 59830 0 . 79 7 . 59 0 . 79 0 . 45 833 2333 555 634 2365 150 150 2100 946 63 1
34 Chengbuz i e x i t 5 9769 0 . 79 7 . 59 0 . 79 0 . 45 833 2333 554 633 2363 150 150 2100 945 63 1
3 Ba l i a ng e x i t 7 1736 1 . 05 6 . 83 1 . 05 0 . 72 833 2333 665 760 3151 158 158 2212 1260 47 1
No
Spo i l s d i s po s a l s i t e a nd l o c a t i on
A r e a(hm2)
D i s po sa l
q u an t it y
(m3)
D i s po sa l
d ep t h(m)
C l e a r anc e and l e v e l i ng ( hm2 )
G r e en i n g mea su r e s R e t a i n i n g a nd
f e n c i n g T empo ra r y mea su r e s f o r s t r i pp i n g t op s s o i l s
R e ‐v e g e t a t i on (h
m2 )
Bu she s
G r a s s in g
(m2)
M10 r e t a i n i
n g wa l l (m
3 )
M10 i n t e r c ep t ion and d r a i n a ge (m3 )
Top s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T emp . d r a i n age
(m3)
Temp s e t t l in g t a nk(Nr)
5
36
Moga i t u e n t r an c e 75452 1 . 09 6 . 94 1 . 09 0 . 75 833 2333 699 799 3262 160 160 2240 1305 48 1
37
Moga i t u e x i t 7 4991 1 . 08 6 . 93 1 . 08 0 . 75 833 2333 695 794 3249 160 160 2240 1299 48 1
38
Dax i g ou e n t r an c e 72639 1 . 06 6 . 86 1 . 06 0 . 73 833 2333 673 770 3178 160 160 2240 1271 48 1
39 L i ang shanen t r an c e 261510 2 . 95 8 . 87 2 . 95 2 . 61 833 2333 2424 2770 8841 381 381 5334 3537 122 1
40 L i ang shan #1 s h a f t 345935 3 . 76 9 . 20 3 . 76 3 . 51 833 2333 3207 3665
11284 421 421 5894 4514 143 2
41
L i ang shan #2 s h a f t 334138 3 . 72 8 . 97 3 . 72 3 . 32 833 2333 3097 3540 11174
421 421 5894 4470 143 2
42
L i ang shan e x i t 3 20321 3 . 22 9 . 96 3 . 22 2 . 88 833 2333 2969 3393 9645 405 405 5670 3858 131 2
43
Naobaowan e x i t 1 76441 1 . 77 9 . 97 1 . 77 1 . 44 833 2333 1636 1869 5308 194 194 2716 2123 67 1
44
X i a op i n gd i n g shan en t r an c e 483905 4 . 85 9 . 97 4 . 85 4 . 52 833 2333 4486 5126
14556 606 606 8484 5822 196 2
45 X i a op i n gd i n g shan e x i t 6 31537 6 . 32 9 . 99 6 . 32 5 . 99 833 2333 5854 6690
18970 704 704 9856 7588 241 3
46
Shanghao cun e x i t 7 6994 0 . 94 8 . 17 0 . 94 0 . 61 833 2333 714 816 2829 156 156 2184 1132 64 1
47
Dugu i gou en t r an c e 181011 1 . 92 9 . 42 1 . 92 1 . 59 833 2333 1678 1918 5763 227 227 3178 2305 75 1
48
Dugu i gou e x i t 1 81011 1 . 92 9 . 42 1 . 92 1 . 59 833 2333 1678 1918 5763 227 227 3178 2305 75 1
49
X i a oba i y angou en t r an c e 286937 2 . 89 9 . 92 2 . 89 2 . 56 833 2333 2660 3040 8681 379 379 5306 3472 120 1
50 X i a oba i y angou e x i t 2 88168 2 . 89 9 . 96 2 . 89 2 . 56 833 2333 2671 3053 8681 379 379 5306 3472 120 1
51
Quyangyaogou en t r an c e
168070 1 . 71 9 . 83 1 . 71 1 . 38 833 2333 1558 1780 5129 206 206 2884 2052 68 1
52
Quyangy aogou e x i t 1 70705 1 . 71 9 . 98 1 . 71 1 . 38 833 2333 1582 1808 5129 206 206 2884 2052 68 1
No
Spo i l s d i s po s a l s i t e a nd l o c a t i on
A r e a(hm2)
D i s po sa l
q u an t it y
(m3)
D i s po sa l
d ep t h(m)
C l e a r anc e and l e v e l i ng ( hm2 )
G r e en i n g mea su r e s R e t a i n i n g a nd
f e n c i n g T empo ra r y mea su r e s f o r s t r i pp i n g t op s s o i l s
R e ‐v e g e t a t i on (h
m2 )
Bu she s
G r a s s in g
(m2)
M10 r e t a i n i
n g wa l l (m
3 )
M10 i n t e r c ep t ion and d r a i n a ge (m3 )
Top s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T op s o i l s(m3
)
T emp . d r a i n age
(m3)
Temp s e t t l in g t a nk(Nr)
T o t a l 10726363
121 . 22 438 . 17 121 . 22 104 . 70 41333
115733
99429 113632 363673
14877
14877
208278
145469
4694 61
8 . Acce s s Roads
Bec au s e o f c ons t r u c t i on v eh i c l e s r o l l i n g , s u r f a c e o f c on s t r u c t i o n
d e t ou r i s d i s t u r bed , v e g e t a t i on i s b e i n g d e s t r o y ed and s o i l a nd wa t e r
e r o s i on w i l l b e e a s i l y p r oduc ed . The r e f o r e , we p u t f o rwa rd f o l l ow ing
p r e v en t i on and t r e a tmen t mea su r e a nd s u g g e s t i ons f o r c on s t r u c t i on
d e t ou r s o i l a nd wa t e r e r o s i on :
( 1 ) Fu l l y u s e e x i s t i n g r u r a l r o ad and r o ad a s t r an spo r t a t i on r o ad ,
d e c r e a s e q uan t i t y a nd l e n g t h o f n ew l y bu i l t r o ad . F o r n ew l y bu i l t
c ons t r u c t i on d e t ou r , r e a s onab l y p l an s t r i k e d i r e c t i o n , l e n g t h and
w i d t h o f c on s t r u c t i on d e t ou r , d e c r e a s e d i s t u r b an c e s c ope on s u r f a c e ,
c on t r o l s o i l a nd wa t e r e r o s i on .
( 2 ) When c on s t r u c t i n g c ons t r u c t i on d e t ou r , t h r ough c omb in i n g r e l i e f a nd
e x i s t i n g t r a f f i c c ond i t i o n , we s hou l d s e t i t t h r ough c omb in i n g
c on s t r u c t i on o f i n c om ing r o ad and r u r a l r o ad a s po s s i b l e . Adop t r o ad
bu i l d i n g s c heme w i t h sma l l i n f l u en c e o f d i s t u rb i n g s u r f a c e . D e c r e a s e
e x c a v a t i on and f i l l o n l a r g e s c a l e . S po i l b a l l a s t p r oduc ed f r om
c ons t r u c t i on d e t ou r s hou l d b e r emoved and u s ed f o r b e i n g f i l l e d and
b e a l l o c a t ed and u s ed . S p o i l wh i ch c anno t b e a l l o c a t ed s hou ld b e
d i s c a rded i n t o c en t r a l i z ed e a r t h ‐ f e t c h i n g a r e a o f ma i n p r o j e c t d e s i gn .
( 3 ) Dur i n g bu i l d i n g p r o c e s s o f r o ad , s t r e ng t h en r e t a i n i n g mea su r e f o r
e x c a va t e d e a r t hwork and s l ope and a vo i d en t r anc e o f s o i l a nd b a l l a s t
i n t o f a rm l and , t o a vo i d c au s i n g s o i l a nd wa t e r e r o s i on .
( 4 ) Cons t r u c t i on d e t ou r s hou l d b e s e t w i t h i n l a nd e xp rop r i a t i on s c ope o f
r a i lway a s p o s s i b l e . T r y t o a vo i d c r o s s i n g f o r e s t r y g r a s s l a nd w i t h
h i gh c o ve r a ge r a t e o f v e g e t a t i on .
( 5 ) Was t e e a r t hwork p r oduc ed f r om d e v e l op i n g c on s t r u c t i on d e t ou r mus t
b e t ime l y c l e an ed a nd un i t i v e l y h and l e d . Do no t f r e e l y d i s c a rd
be c au s e i t w i l l p r ov i d e l o o s e s o i l s ou r c e t o s o i l a nd wa t e r e r o s i on .
S t r i c t l y r e gu l a t e d r i v e r ou t e o f v eh i c l e s du r i n g c on s t r u c t i on p r o c e s s .
( 6 ) A f t e r u s e o f c on s t r u c t i on d e t ou r i s c omp l e t ed , we s hou l d n e go t i a t e
w i t h l o c a l r e l a t i v e d ep a r tmen t s a c c o rd i n g t o a c t u a l s i t u a t i on . T r y t o
make c on s t r u c t i on d e t ou r u s ed l o c a l l y a nd make i t f u r t h e r u s ed a s
ma i n t enan ce r o ad o f r a i lway . F o r r o ad wh i c h c anno t b e u s ed , a d op t
s i t e c on t r o l mea su r e s o f c l e an i n g a nd l e v e l i n g a c c o rd i ng t o c on c r e t e
s i t u a t i on and ad op t p l an t p r o t e c t i on mea su r e o f p l an t i n g s h rub s and
sp r e ad i ng g r a s s s e ed f o r r e s t o r a t i on .
A f t e r c on s t r u c t i on i s e nded , t h e a r e a n e ed i ng t o b e c l e an ed and
l e v e l ed i s 4 6 . 27hm2 f o r p r e v en t i on and t r e a tmen t o f c on s t r u c t i on
d e t ou r ; t h e a r e a s p r e ad i n g g r a s s s e ed r e a c he s 46 . 27hm2 .
Tab le 17 Managemen t o f acces s roads
No Land f o r
m 起讫里程 A dm in i s t r a t i on
A r e a(hm2)
L en g th(km)
C l e a r anc e and l e v e l i n
g(hm2)
Gra s s i ng
(hm2
) S i n g le
t r a c k
Doubl e
t r a c k
1 P l a i n CK000+000~CK002+570 Z h an g j i a k o u 0 . 00 0 . 00 0 . 00 0 . 00 0 . 00
2 P l a i n
CK002+570~CK011+260 Wan gquan 0 . 52 0 . 60 0 . 30 0 . 52 0 . 52
3 P l a i n
CK011+260~CK068+300 Hua i ’ a n 5 . 9 0 7 . 00 3 . 00 5 . 90 5 . 90
4 H i l l s CK068+300~CK073+310 S h a n g y i
X i n g h e 0 . 5 7 0 . 60 0 . 40 0 . 57 0 . 57
5 H i l l s
CK074+560~CK076+900
6 H i l l s
CK073+310~CK074+560 S h a n g y i
X i n g h e 5 . 9 0 7 . 00 3 . 00 5 . 90 5 . 90
7 H i l l s
CK076+900~CK124+215
8 H i l l s
CK124+215~CK151+080 C h an y ouq i a nq i
J i n i n g 8 . 2 6 9 . 80 4 . 20 8 . 26 8 . 26
9 P l a i n CK163+498~CK179+317
10 P a i n CK151+080~CK152+303 Ch a y ouq i a nq i
J i n i n g 1 . 1 8 1 . 40 0 . 60 1 . 18 1 . 18
11 P a i n CK160+796~CK163+498
12 H i l l s
CK152+303~CK160+796 Ch a y ouq i a nq i 2 . 3 6 2 . 80 1 . 20 2 . 36 2 . 36
13 H i l l s
CK179+317~CK255+248 Z huo z i 14 . 38 16 . 80 7 . 70 14 . 38 14 . 38
14 H i l l s
CK255+248~CK269+500 Hohho t 4 . 8 5 5 . 80 2 . 40 4 . 85 4 . 85
15 P l a i n CK269+500~CK291+000 Hohho t
2 . 36 2 . 80 1 . 20 2 . 36 2 . 36
16 H i l l s S e c t i o n s b y S e c on d J i b a o l i n e H ohho t
0 . 00 0 . 00 0 . 00 0 . 00 0 . 00
17 P l a i n S e c t i o n b y J i n g b a o l i n e ( d o ub l e
l i n e ) Z h a n g j i a k o u 0 . 00 0 . 00 0 . 00 0 . 00 0 . 00
To t a l 46 . 27 54 . 60 24 . 00 46 . 27 46 . 27
9 . Preven t i on and Trea tment Measure f o r Manu fa c tu r ing and
L iv i ng Area f o r Cons t ruc t i on
Bec au s e o f i n f l u en c e o f a r t i f i c i a l a c t i v i t i e s a t c on s t r u c t i on s i t e a n d
c amp s i t e , s u r f a c e v e g e t a t i on and s o i l s t r u c t u r e w i t h i n l a nd u s e s c ope
o f s i t e a nd c amp s i t e w i l l b e e a s i l y d e s t r o y ed , a nd i t w i l l c a u s e l o s i n g
o r i g i n a l s o i l a nd wa t e r c on s e r v a t i on f un c t i on . The r e f o r e , f o l l ow ing
p r o t e c t i on mea su r e s s hou l d b e a dop t ed :
( 1 ) When s e l e c t a dd r e s s f o r c on s t r u c t i on s i t e , u nd e r t h e p r em i s e mee t i n g
p r i n c i p l e o f p r o x im i t y , t r y t o u s e s u r r ound i n g i d l e s i t e o r u n c r opped
s o i l . Bu i l d o f manu f a c t u r i n g and l i v i n g hous e s a t c on s t r u c t i on s i t e ,
t o o l s a nd s t on e ma t e r i a l s t a c k i n g a nd ma t e r i a l p r o c e s s i n g s i t e a nd
a r r angemen t o f a l l o t h e r t empo r a r y manu f a c t u r i n g and l i v i n g
f a c i l i t i e s s h ou l d b e gu a r an t e ed r e a s onab l e , t i d y a nd o rde r l y . T r y t o
mo r e u s e l o c a l e x i s t i n g p l a c e , a v o id o c c upy i ng mor e l a nd c au s ed b y
c a s ua l n e s s o f t empor a r y p r o j e c t bu i l d i n g and a vo i d d amag i ng s o i l a nd
wa t e r c on s e r v a t i on f un c t i on .
( 2 ) De f i n i t e l y s e t p o s i t i on and s c op e o f c on s t r u c t i on s i t e a nd c amp s i t e .
Do n o t f r e e l y e xpand s c ope du r i n g c on s t r u c t i on p ro c e s s and no t f r e e l y
c h ange a dd r e s s . A vo i d o c c upy i ng more l a nd c au s ed by f l u i d i t y o f
e ng i n e e r i n g c on s t r u c t i o n and c l a r i f y e nv i r onmen t a l p r o t e c t i on
r e spon s i b i l i t y o f c on s t r u c t i on s i t e .
( 3 ) A f t e r c on s t r u c t i on i s e nded , t empor a r y f a c i l i t i e s bu i l t d u r i n g
c ons t r u c t i on p r o c e s s s hou l d b e h anded t o l o c a l g o v e rnmen t t h r ou gh
c omb in i n g op i n i on f r om l o c a l g o v e rnmen t . C l e an was t e f r om
con s t r u c t i on s i t e and c amp s i t e s u r f a c e a nd c a r r y ou t n e c e s s a r y
l e v e l i n g . Adop t v e g e t a t i on mea su r e o f s p r e ad i ng g r a s s f o r g r ound
wh i c h c an b e g r e ened and r e c ove r i t s s o i l a nd wa t e r c on s e r v a t i on
f un c t i on .
A f t e r c on s t r u c t i on i s e nded , a dop t c l e an i ng a nd l e v e l i n g mea su r e f o r
t empo r a r i l y o c cup i ed c on s t r u c t i on s i t e a nd c amp s i t e f o r t h e p r o j e c t
a nd i n vo l v ed a r e a r e a che s 147 . 99hm2 , t h e a r e a s p r e ad i n g g r a s s s e ed
i s 147 . 99hm2 .
Tab le 18 Management o f Cons t ruc t i on f i e l d `
N o L a n d f o
rm M i l e s t o n e A dmn i s t r a t i o n
A r e a
( hm 2
)
C l e a ra n c e a n d
l e v e l in g
( hm 2
)
G r a s s in g
( hm 2
)
1 P l a i n
C K 0 0 0 + 0 0 0 ~ C K 0 0 2 + 5 7 0 Zh a n g j i a k ou
0 0 0
2 P l a i n C K 0 0 2 + 5 7 0 ~ C K 0 1 1 + 2 6 0 Wang quan
1 . 1 9 1 . 1 9 1 . 1 9
3 P l a i n C K 0 1 1 + 2 6 0 ~ C K 0 6 8 + 3 0 0 Hua i ’ a n
3 8 . 1 5 3 8 . 1 5 3 8 . 1 5
4 H i l l s
C K 0 6 8 + 3 0 0 ~ C K 0 7 3 + 3 1 0 Sh a n g y i
X i n g h e
2 . 3 7 2 . 3 7 2 . 3 7 5 H i l l s C K 0 7 4 + 5 6 0 ~ C K 0 7 6 + 9 0 0
6 H i l l s C K 0 7 3 + 3 1 0 ~ C K 0 7 4 + 5 6 0 Sh a n g y i
X i n g h e
1 7 . 5 6 1 7 . 5 6 1 7 . 5 6 7 H i l l s C K 0 7 6 + 9 0 0 ~ C K 1 2 4 + 2 1 5
8 H i l l s C K 1 2 4 + 2 1 5 ~ C K 1 5 1 + 0 8 0 Ch a n yo uq i a nq i
J i n i n g
3 6 . 6 8 3 6 . 6 8 3 6 . 6 8 9
P l a i n C K 1 6 3 + 4 9 8 ~ C K 1 7 9 + 3 1 7
1 0 P a i n
C K 1 5 1 + 0 8 0 ~ C K 1 5 2 + 3 0 3 Cha y ouq i a n q i
J i n i n g
1 . 1 9 1 . 1 9 1 . 1 9 1 1
P a i n C K 1 6 0 + 7 9 6 ~ C K 1 6 3 + 4 9 8
1 2 H i l l s C K 1 5 2 + 3 0 3 ~ C K 1 6 0 + 7 9 6 Cha y ouq i a n q i
1 . 4 7 1 . 4 7 1 . 4 7
1 3 H i l l s C K 1 7 9 + 3 1 7 ~ C K 2 5 5 + 2 4 8 Zhuo z i
3 0 . 3 6 3 0 . 3 6 3 0 . 3 6
1 4 H i l l s C K 2 5 5 + 2 4 8 ~ C K 2 6 9 + 5 0 0 Hohho t
1 6 . 3 7 1 6 . 3 7 1 6 . 3 7
1 5 P l a i n
C K 2 6 9 + 5 0 0 ~ C K 2 9 1 + 0 0 0 Hohho t 2 . 6 5 2 . 6 5 2 . 6 5
1 6 H i l l s S e c t i o n s b y S e c o nd
J i b a o l i n e
H ohho t 0 0 0
1 7 P l a i n S e c t i o n b y J i n g b a o
H ohho t 0 0 0
N o L a n d f o
rm M i l e s t o n e A dmn i s t r a t i o n
A r e a
( hm 2
)
C l e a ra n c e a n d
l e v e l in g
( hm 2
)
G r a s s in g
( hm 2
)
l i n e ( d oub l e l i n e )
T o t a l 1 4 7 . 9
9 1 4 7 . 9
9 1 4 7 . 9
9