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Showing 1 to 2 of 2 for “"Room-and-Pillar Coal Mining"”.
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Bump control design protocol for room-and-pillar retreat mining
… design protocol was developed to minimize coal mine bumps, which are the explosive failure of highly stressed pillars. The protocol was developed for room-and-pillar retreat mining conducted with available continuous miner technology. The inability of existing coal pillar equations to …
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Numerical Modeling of Room-and-Pillar Coal Mine Ground Response
Underground coal mine ground control persists as a unique challenge in rock mass engineering. Fall of roof and rib continue to present a hazard to underground personnel. Stability of underground openings is a prerequisite for successful underground coal mine workings. An adaptation of a civil …