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Keywords: longwall mining model
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Proceedings Papers

Paper presented at the The 21st U.S. Symposium on Rock Mechanics (USRMS), May 27–30, 1980
Paper Number: ARMA-80-0265
... the relationship between the subsidence factor and the W/D ratio. As the W/D ratio increased the subsidence factor also increased. lhe overall values of the subsidence factor for room- and-pillar models were lower than those of longwall mining models. For a 56% extraction ratio the sub- sidence factors were...

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