Which parameter indicates the difficulty of shaft sinking in water-bearing formations?
A. Overbreak ratio
B. Rock quality designation
C. Hydrostatic pressure
D. Shaft angle
Answer: Option C
Solution (By Examveda Team)
Hydrostatic pressure reflects the pressure exerted by groundwater.The correct answer is: Hydrostatic pressureIt can cause water inflow during sinking, requiring dewatering or ground freezing.Important in selecting lining and sinking method.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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