Abstract:
Huobaoganhe Coal Mine, with complex geological conditions, faults, developed subsided column, is threaten severely by confined groundwater from Ordovician carbonate aquifers and Carboniferous carbonate aquifers, and the water pressure on coal seams has been reached 4 to 6 MPa. A water inrush accident happened on Dec. 4,2012, and the water quantity from F
13 fault was above 730 m
3/h, because of the scientific contingency rescue and management, the water inrush was controlled and no man was hurt. So the practice experience and methods of the accident treatment were worthwhile to introduce.