Analysis of Hydrogeological Conditions and Prediction of Water Inflow in the Initial Mining Face of a Mine
In order to improve the safety factor of coal mining and reduce the impact of underground water inflow,combined with existing geological conditions and drilling data,the hydrogeological conditions of the 3901 fully mechanized mining face in a coal mine in Shanxi were analyzed.Through theoretical calculation,the development height of water conducting cracks in the 9th coal seam after mining was analyzed,and it was strongly connected with the roof aquifer to predict the normal and maximum water inflow during the mining period.Comparing the predicted results with the actual water inflow during the mining process,it was found that the actual water inflow was close to the predicted maximum water inflow.Therefore,it is more reasonable to equip drainage equipment and construct a drainage system based on the predicted maximum water inflow.
coal miningprediction of water inflowwater conducting crackshydrogeology
NETL
NSTL
万方数据
