Abstract:

Abstract:On the basis of LiYazhuang coal mine hydrogeological conditions,the mine water filling factors are analyzed,it is pointed out that roof and floor sandstone direct water filling aquifer of the No.2 coal seam has less influence on mine water filling,and the Taiyuan group limestone and Ordovician limestone indirect water filling aquifer below the coal seam floor has more influence on mine water filling,also are the main source of mine water,the water filling channel are mainly the faults and subsided column of fracture structure area.Mine water prevention and control measures are put forward according to the characteristics of mine water disaster.

Key words: Keywords: Karst water, mining with pressure, Fracture structure, measurest