Excess pore pressure in backfill material is a cut and fill stope leads to . . . . . . . .
A. Loss of shear resistance to fill
B. Reductionin strength of the wall rock
C. Enhance bearing strength to fill
D. Prevents of progressive failure of crown pillar
Answer: Option A
Related Questions on Metal Mining
A. Chip sampling
B. Channel
C. Bulk
D. Radio metre
The ore loaded in shrinkage stoping by . . . . . . . .
A. Over head mucker
B. Pneumatic Auto Loader
C. LHD
D. None
If the ore body is thicker, the level interval will be . . . . . . . .
A. More
B. Lessor
C. Stronger
D. Weaker
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