8/16/2019 Bahan Ajar Mekanika Batuan.2

1/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 22 

3.4. RMR4)1 :"%%";0*< =0> ?(-(@1.1-= (-1 $=1# ." A%(==0:B ( -"A2 @(== $=0*< .)1 !"! =B=.1@C 

8*0(>0(% A"@?-1==0D1 =.-1*

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2/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 23 

8/16/2019 Bahan Ajar Mekanika Batuan.2

3/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 24 

3.5. Hubungan Antara Stan-up Time dengan RMR

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4/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 25 

3.6. Rock Tunnelling Quality Index, Q systemK* .)1 M(=0= ": (* 1D(%$(.0"* ": ( %(-A(D(.0"*=N '(-."* 1. (% OPQRSI ": .)1

T"-;1

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5/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 26 

Estimated support categories based on the tunneling quality index Q (Grimstad & Barton, 1993):

REINFORCEMENT CATEGORIES!"  #$%#&&'()*+,

."  %&') /'0)1$2,

3" 

%4%)*56)17 /'0)1$2,

8"  %4%)*56)17 /'0)1$2 91): 8;

>"  =1/(* (*1$='(7*+ %:')7(*)* >;

8/16/2019 Bahan Ajar Mekanika Batuan.2

6/6

!"#$% '()(* +,(- !(.( /$%0() !12(*02( '(.$(*

3456 74 89! 27 

?"  76%) 7'$7(*)* 01$1$2, E6FGHI 2IJKLGMN MON /MIGPOD !??3"

U* -1%(.0*< .)1 D(%$1 ": .)1 0*#1> % ." .)1 =.(M0%0.B (*# =$??"-. -1V$0-1@1*.= ": $*#1-