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Which of these stoping methods involves leaving horizontal pillars to support...

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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Which of these stoping methods involves leaving horizontal pillars to support the roof?

Answer & Solution
Correct Answer: Option B
Room and pillar leaves ore pillars behind to support the roof.The correct answer is: Room and pillarUsed for flat-lying deposits like coal and potash.Room extraction can be partial or full.
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