Maximum water inrush of loose aquifer in Xiaobaodang No.1 Coal Mine
There is a certain height of aquifer in the upper part of Xiaobaodang No.1 Coal Mine,which is faced with com-plex hydrogeological conditions and mining safety risks.The problems of mine safety mining and water inrush prediction need to be solved urgently.The purpose of this paper is to study the height of water-conducting fractured zone and mine wa-ter inrush in Xiaobaodang No.1 Coal Mine by theoretical prediction method.The research shows that the height of water-conducting fractured zone in Xiaobaodang No.1 Coal Mine is 123.21～158.80 m.It is predicted that the normal water in-rush of mining face is 178 m3/h,the water inrush of mined face is 202 m3/h,the water inrush of tunneling face is 35 m3/h,the water inrush of main shaft roadway is 60 m3/h,and the normal water inrush of the mine is 475 m3/h.1.5 times is se-lected as the calculation coefficient of maximum water inrush of the mine,and the maximum water inrush of the mine is 713 m3/h.Through the analysis of geological characteristics and hydrogeological monitoring,the corresponding water preven-tion and control measures were formulated,a perfect drainage system was established,and a scientific and effective geolog-ical guarantee scheme was provided.
loose aquifermine water inrushoverburden destructiongeological guarantee
万方数据
维普
