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It is predicted that coal mining in Southwest ia, and the economic stability that it brings to the area, will continue to decline over the next decade unless an environmentally sound, and economically viable means can be found to extract seams of high quality coal in the thickness range of 14 to 28 inches.
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Underground ThinSeam Coal Mining in ia Darren Holman Malcolm J. McPherson Ian M. Loomis ia Center for Coal and Energy Research ia Center for Coal and Energy Research
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® Plow Systems for Low Seam Coal. Plowing is the preferred longwall mining technique for seams below m (71 in), and under specific geological conditions, even below m (90 in).
Underground ThinSeam Coal Mining in ia | Coal ...
ia Center for Coal and Energy Research undertakes a brief overview of current technologies utilized for underground coal mining in the United States.
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Underground mining of thick coal seams ScienceDirect
This paper reviews underground mining methods for total thickness of a thick coal seam in single lift (TTTCSSL). Review shows the required engineering for extraction of thick seams needs to be fitted with thickness of the seam, behavior of rockmass and surrounding stress conditions for efficient mining.
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