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Underground Mining Longwall Equipment

Longwall mining an overview sciencedirect topics,for all underground longwall mining, a generalized scheme of degasification depending on the gassiness of the coal seam has been proposed by thakur and zachwieja 1.the following assumptions were made. the longwall panel is 1000 ft wide and 10,000 ft long.. the coal seam has an average thickness of ft.. the coal block to be degassed is 1300 ft by 10,000 ft, assuming that the width

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