Q221
Which method generates the most subsidence at surface?
A.
Cut and fill
B.
Block caving
AnswerC.
Shrinkage stoping
D.
Room and pillar
Answer: Option B
Solution
Answer: Option B
Solution:
Block caving involves collapsing the ore body and overlying rock.The correct answer is: Block cavingLarge-scale method suitable for low-grade, massive ore bodies.Subsidence is significant and must be managed.