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What is the primary reason for backfilling in underground mining

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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What is the primary reason for backfilling in underground mining?

Answer & Solution
Correct Answer: Option C
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.
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