Q225
Which technique improves roof stability by reinforcing fractured rock?
A.
Dewatering
B.
Ground freezing
C.
Rock bolting
AnswerD.
Shaft sinking
Answer: Option C
Solution
Answer: Option C
Solution:
Rock bolting strengthens the rock mass by binding loose blocks.The correct answer is: Rock boltingCommon in hard rock mines.Often combined with mesh and shotcrete.