Q143
In block caving, what triggers the caving process?
A.
Continuous blasting
B.
Gravitational pull
C.
Hydraulic jacking
D.
Controlled excavation at base
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Block caving depends on undercutting the base of the ore body.The correct answer is: Controlled excavation at baseOnce support is removed, the overlying rock caves under gravity.Requires strong geotechnical planning.