WU Hui fang 1;DUAN Shui yun 1;GAO Hong sen 2 (1 229 Hydrogeological Team of China National Administration of Geology;

• 1:Taiyun 030006
• 2:China
• 3: 2 Wangzhuang Coal Mine
• 4:Luan Mining Co

Abstract：

Dongshan Coalfield is located in the western part of Niangziguan Spring Area.Ordovician karst water threatens mining No.15 coal seam safely.The possibility of karst water gushing is existed in weakness zone of water resisting coal block and fractured zone of collapse columns.This paper deals mainly with the condition of water gushing from coal seam floor and advances the control measure.

Key Words： coal seam;water gushing condition;Dongshan Coalfield

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Authors: WU Hui fang 1;DUAN Shui yun 1;GAO Hong sen 2 (1 229 Hydrogeological Team of China National Administration of Geology;

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