APPROACH ON HYDROGEOLOGICAL EXPLORATION METHOD FOR WATER SUPPLY FROM DEEP KARST──A CASE OF THE COAL MINES OF NORTHERN LUAN

The karst water is buried deeply in the Coal Mines of Northern Luan, which makes the conditions of runoff and drainage very complex. Many surveying techniques are applied to the hydrogeological exploration for water supply.According to the characteristics of divergent sites for using water in the coal mines,exploring by the method which is to combine in the search for concentrative water supply source base with divergent water supply source base has resulted in predominance.