7/23/2019 Parameter Q System

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KESTABILAN TAMBANG BAWAH TANAH

 Tugas 3

Parameter Q-System

• Nilai RQD = 90%

•  Jumlah Kekar (Joit Num!er"J# = $set Ra&om

• Pegisi material = material halus

'ika

• Ko&isi air &i Terooga = !asah (Joit et"J#

•  Tegaga )erti*al (+,# = $ '.a

• Kuat teka !atua (a&esit# +*= /0 '.a

• S.a Terooga = 0m

•  Terooga yg &iker1aka a&alah = .ermae utuk !egkel alat$ &i

!aah taah

• SR2 =Ko&isi kekar (Joit rough"Jr#"kekerasaKekasara

ituga4 Nilai Q!4 Nilai De*4 Tetuka

 Ty.e kelas !atua

 Jeis .eyagga yag &i.akai (legka.#

 Jumlah .eyagga yg &i.akai

5am!arka .eam.agya ter.oga legka. &ega

&esai .eyaggaya

Q = RQD"J 6 Jr"Ja 6 J"SR2

SR2 = +*"+,

Keteraga 7

Dimesi terooga

P = 0m

8= m

 T= m

Parameter Q-System

7/23/2019 Parameter Q System

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• RQD = 90%

•  J = /

•  Jr = 3

•  Ja =40

•  J = 40

• SR2 =$4 sehigga ilai .em!o!otaya $• S.a = 0 m

• +, = $ '.a

• +*= /0 '.a

a4 Q = (RQD"J# 6 (Jr"Ja# 6 (J"SR2# =Q = (90"$# 6 (3"40# 6 (40"$# = 4$ m

!4 De = S.a"SR2De = 0"$

  = 04:3 m*4 44

•  Ty.e kelas !atua = 'asi,e Ro*k

•  Jeis .eyagga yag &iguakao Ro*k ;olt

S.asi = $4m

Pa1ag = 34m

o Shot*rete

<reior*e&

 Te!al = 90mm

•  Jumlah .eyagga yag &i.akai =

• 5am!ar .eam.ag terooga

SR2 =