Q151
Which of the following is a major hazard in block caving mines?
A.
Flooding
B.
Subsidence
AnswerC.
Gas emission
D.
Roof bolting failure
Answer: Option B
Solution
Answer: Option B
Solution:
Block caving causes large-scale underground voids to collapse naturally.The correct answer is: SubsidenceThis leads to surface subsidence, often over wide areas.Monitoring and mitigation are critical.