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.
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.
Feasibility about raising the coal mining level under sand-water layer in Wujia coal field
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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