Difference between revisions of "Shortwall mining"
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| − | shortwall mining | + | 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. |
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Revision as of 21:00, January 3, 2009
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.