Analysis of Hydrogeological Conditions of No.9+10 Coal Seam in Dongsheng Coal Industry
Based on the existing geological and hydrogeological data of Dongsheng Coal Industry,the geohydrologic conditions of No.9+10 coal seam in this mine were comprehensive analyzed,and the maximum development height in water flowing fractured zone of No.9+10 coal seam was calculated by the theoretical formula method,which is 70.22 meters.The water of old mine,roof water and atmospheric precipitation are considered to be the main water filling sources and water damage types,of which the water of old mine is the most important type,and the suggestions for water disaster prevention and control aiming at the three main water disaster types are proposed.
NETL
NSTL
万方数据
