BU Chang- sen1;LIANG Ming2 ;QU Xiu- shu1 (1.Guojiazhuang Coal Mine;

• 1:Feicheng Mining Corporation
• 2:Feicheng2 71613
• 3:China
• 4: 2 .Xi′an University of Science & Technology

Abstract：

A groundwater inrush occurred with water amount reached 32 970 m3/ h at- 2 10 m North Main Tunnel in Guojiazhuang Coal Mine of Feicheng Mining Area.The geological structures are complicated near the water inrush point,and different aquifers contact each other.The severe inrush resulted from confined water gushing into tunnel through weak fractures.

Key Words： water inrush passage;ejected material;fault;analysi

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Authors: BU Chang- sen1;LIANG Ming2 ;QU Xiu- shu1 (1.Guojiazhuang Coal Mine;

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