Q86
Which method involves ore fragmentation mainly by gravity?
A.
Longwall mining
B.
Sublevel stoping
C.
Block caving
AnswerD.
Shrinkage stoping
Answer: Option C
Solution
Answer: Option C
Solution:
Block caving undermines a large ore block, causing it to collapse under its own weight.The correct answer is: Block cavingMinimal drilling and blasting once caving begins.Low cost per ton but high dilution.