Development of an Underground Automated Thin-Seam Coal Mining Method Darren W. Holman (ABSTRACT) It is predicted that coal mining in Southwest ia, and the
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Underground Mining Methods and Applications Production Underground excavation made by removing ore allows trackless equipment to be used in drilling and mucking.
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Counting against underground mining are the size of underground mining equipment—because made to go underground, the specific mining method selected
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Since 1969, the Bureau of Mines, U.S. Department of the Interior, has sponsored numerous programs aimed at improving methods of underground communication. As a result