TIAN Wen-ming, XU Wen-quan, LIU Bao-hai, YANG Feng-zhi. Feasibility about raising the coal mining level under sand-water layer in Wujia coal field[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(3): 47-48.
Citation: TIAN Wen-ming, XU Wen-quan, LIU Bao-hai, YANG Feng-zhi. Feasibility about raising the coal mining level under sand-water layer in Wujia coal field[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(3): 47-48.
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Feasibility about raising the coal mining level under sand-water layer in Wujia coal field

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  • Based on the hydrogeological conditions,coal seam roof,rock mechanics in Wujia coalfield,author advance that safety pillar under water bodies can be shorted,mining level can be raised,and expound the way of construction.
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