Konsep Dasar
Open Cut allows you to:• Mensimulasikan suatu desain tambang untuk tahapan short-term
production operations & long-term feasibility studies• Menggunakan Minescape CAD tools untuk visualise dan
• Graphically.Dengan sistem perhitungan reserve yang dapat memastikan Vol ton dan Grades, sehingga setiap komponen dapat dihitung secara akurat dengan menggunakan software selain minescape.
OPENCUT PROCESS PREVIEW
OPEN CUT PROCESS
OPENCUT PROCESS
STARTING OPEN CUT PROJECT
1. Open Design file Block2. Create New layer (ex: Polygon)3. Copy duplicate polygon sheet/boundary area project to layer polygon
there are 2 ways to make boundary polygon; first using poly sheet togenerate batter block over all of the area project; and the second using
contour oratio and this way means only this area will be generate block4. Copy duplicate subcrop of lower seam that to be mined5. Create 2 line parallel with subcrop line which cover project area ( this line
will be used as reference to the generate strip)6. Create 2 line which across the first line ( this line will be used as
reference to generate block)7. Create Side definition for High wall, side wall and low wall using :
Minescape explorer Spec Create Spec category : Side8. Tag each side of the polygon boundary using menu Strip_Design Tag
Design Segments (for example : high wall using hw55, side wall usingsw55 and low wall using lw30).
Side DefinitionSide Definition
Side Wall
Batter Angle
Offset
Side DefinitionSide Definition
Side
Start batter/offset
End batter/offset
1 2
34
Side
Side
Side
Batter Block
Membuat Side DefinitionMembuat Side Definition
Membuat Side DefinitionMembuat Side Definition
Side Definition
Generate StripsStrip Design Generate Strips
Block Size
B01 B34Block Naming Direction
Block Size
Strip Definition
Generate Strips
S13
S01
Strip N
aming
direction
Side Definition
Generate Strip Intersection (BatterBlock)
Strip Design Strip Intersection
Merger Batter Block
After Merging process, Delete the Smaller Batterblock
Minescape Explorer Folder Block Process Merge Batter Block
Project Solids
Strip Design Project Solids
Solids Display
Tips :Solids dapat diproyeksikan, hanya pada area yang tercover oleh surface topo (pada area crest),Dan surface floor(pada Toe area).Sehingga baiknya disimulasikan dahulu untuk total areanya
Section Solids
Graphics Section Blocks
Section Results
Reserve Solids
2nd Days
Generate Sample Solids
Reserve Sample Solids
Solids Mining Evaluation
Total Percent : 50/50x100 Tonnes
Add Percent : 50/100x100 Tonnes
Adjustment/Monitoring from ROM
Reserves Evaluate samples Mining Reserves
Accumulate Sample
Accumulate table result
Reserve Accumulate Samples
Reformat BlockReserve Reformat Sample Block
Terminologi Calculated Reserve
Rawrecmass : Raw Recoverable mass = mass – (LossVol x RD)
Dilution Volume : Dilution/seam volume*100*RD/Dilution RD
Rommass: Raw Recmass*(100+Rom moisture)/(100-Dilution Volume*(100-Dilution Moisture)/100)
Productmass: (Rommass-(mass*Dilution/100*(100-moisture)/(100-Rommoisture)))*(Yield/100*(100-moisture)/(100-product moisture))
Create SR Colour
Terdapat 2 cara dalam melakukan proses ini:1. By MXL pembuatan beberapa Spec MXLtransfer to
table data acc / Reformat Minescape Explorer Action Resgraph
2. By Microsoft Excell; Data Accumulated/Reformat exportminescape Explorer Table Genricpilih TableImport to Excell used pivot & IFminescape ExplorerImport TableAction Resgraph
Create SR Colour used MXL
Minescape xplorerMXL Files Create
Minescape xplorerTable Files Genericmade new name table open folder Table column Create
Mincom Schema
MXL SR
Minescape Explorer Table files Generic + Name of tableOpen Folder Table Column Create
MINESCAPE EXPLORER-MXL FILES-CREATECreate Table SR
Resgraphic SR Colour
1. Export reformat tables reserve into excel2. Create new column , Coal Cum, waste Cum , SR Cum, and SR_clr_cum
Blockname OB COAL SR OB_CUMM COAL_CUMM SR_CUMM SR_Max4SOLB02S03 1320.424908 81.60457611B2/C2 IF(MID(A2,4,4)=MID(A1,4,4),B2+E1,B2) IF(MID(A2,4,4)=MID(A1,4,4),C2+F1,C2) E2/F2 IF(G2>4,200,(G2*(170-110)/4)+110)SOLB02S04 638.2804306 82.0840497 7.775937 1958.705338 163.6886258 11.966044 200SOLB02S05 531.3094552 121.4999027 4.372921 2490.014793 285.1885285 8.7311183 200SOLB02S06 433.5867374 148.1173401 2.927319 2923.601531 433.3058686 6.7472004 200SOLB02S07 497.5371284 156.765728 3.173762 3421.138659 590.0715966 5.7978365 200SOLB02S08 768.4255068 215.5657768 3.564692 4189.564166 805.6373734 5.2003101 200SOLB02S09 776.312133 180.8911514 4.291598 4965.876299 986.5285249 5.0336875 200SOLB02S10 839.1555602 183.5051498 4.572926 5805.031859 1170.033675 4.9614229 200SOLB02S11 995.1402402 185.1083984 5.375986 6800.172099 1355.142073 5.018051 200SOLB02S12 779.5135734 176.3910103 4.419236 7579.685673 1531.533083 4.9490839 200SOLB02S13 546.6651012 176.7699699 3.092522 8126.350774 1708.303053 4.7569726 200SOLB02S14 682.7194424 178.019249 3.835088 8809.070216 1886.322302 4.6699709 200
Resgraphic SR ColourMINESCAPE EXPLORERACTIONSRESGRAPHICS-PROCESS
Harus diisi
Resgraph SR Cumm Result
Create Pit DesignMinescape Explorer Spec CreateBenches
Create Polygon Pit from SR Cumm
INSERT RAMP
Strip_Design Ramps insert ramps
Generate Pit Design
Pit Project
Result of generate Pit design will create new layer name asaccording to name which filled at form, for example :crest_line; toe_line; Ramp line; and Rays_line. Copy duplicateobject from those layer into one layer for example pit_1
3Rd Days
INTERSECTION PIT INTERSECTION PIT
Create Pit Floor
1. Create new layer at design file Pit Design ( for ex : pit_floor)2. Attach contour structure floor of lowest seam, and copyduplicate to layer pit_floor3. Displaying polygon_pit and relimit that contour structureusing this polygon
Make Triangle Pit Design
Model Triangles Design
Create Intersection line between topo and pit designMinescape Explorer Triangle Files process
Clip Pit Design Over topo using surface topo
Minescape Explorer Surfaces All Surfaces Process
Result after Clipping using surface topo
Create Triangle Final Pit Design
Model Triangle Design
Final Pit Result
Pit Reserve Calculation
• Reserve Sample
• Evaluate Sample ( Mining Reserve )
• Accumulate Sample
Reserve Sample Triangles
Evaluate Sample ( Mining Reserve )
Reserve Evaluate Samples Mining Reserves
Accumulate Sample
Reserve Accumulate Samples
QUESTION
EVALUATION
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