What is the primary reason for backfilling in underground mining?
A. Prevent water seepage
B. Increase haul distance
C. Provide ground support
D. Improve ventilation
Answer: Option C
Solution (By Examveda Team)
Backfilling involves placing material in mined-out voids.The correct answer is: Provide ground supportStabilizes surrounding rock and allows nearby mining.May also reduce surface subsidence.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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