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Keywords: floor stability
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Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-224
... not work well for all types of mines. For example, in the Donovan study [4] this method has been recommended only for thin-seam coal mines. university safety factor us government floor stability extraction ratio pillar stability coal waste moisture content slurry strength reservoir...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-511
... content stability strength Applicability surface subsidence database floor stability pillar bearing capacity model Illinois Basin vesic-speck approach stability factor Speck coal pillar equation 1. INTRODUCTION In the Illinois Basin, all major mineable coal seams are associated with weak...

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