Difference between revisions of "Shortwall mining"
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(New page: A shortwall mining system consists of a room-and-pillar mining system in which the working face is wider than usual but smaller (less than 150 feet) than that in longwall mining. [[cat...) |
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Revision as of 14:20, June 24, 2007
A shortwall mining system consists of a room-and-pillar mining system in which the working face is wider than usual but smaller (less than 150 feet) than that in longwall mining.