华亭煤矿水文地质条件分析

Analysis of hydrogeological conditions in Huating Mine

华亭煤矿目前主采煤层为煤5层,根据近期进行的水文地质补充勘探,并结合以往资料对水文地质条件进行了分析,矿井开采主要充水因素为地下含水层水及采空区、巷道积水。井田内含水层按其含水性、含水类型及水力特征,划分为5个含水层,其中第一、二、三含水层为直接充水含水层,但其富水性弱,对未来井田开采影响不大;煤5层开采后所形成的导水裂隙带全部没有进入第四、五含水层,因此煤层正常开采及构造不发育地段情况下,第四、五含水层对矿井充水影响不大。华亭煤矿目前开采2501采区,受工作面回采影响,部分工作面存在采空区积水,在煤层开采过程中需引起注意。

The main mining seam of Huating Mine is Coal 5.Based on the recent hydrogeological supplemental exploration and the analysis of hydrogeological conditions with previous information,the main water-filled factors of mine mining are underground aquifer water and water accumulation in the mining area and roadway.According to its water content,water type and hydraulic characteristics,the aquifer in the mining field was divided into five aquifers,among which the first,second and third aquifers were direct water-filled aquifers,but their water-richness was weak and had little impact on field mining;the hydraulic fissure zone formed after mining of coal 5 layers did not enter the fourth and fifth aquifers,so the fourth and fifth aquifers had little impact on mine water filling if the coal seam was mined normally and the tectonic lot was not developed.The influence of the fourth and fifth aquifers on mine water filling was not significant.In Huating Mine,2501 mining area was currently mined,and some of the working faces had water accumulation in the goaf due to the influence of face retraction,which needed attention during the mining process.