为研究煤层开采对其覆岩含水层的影响情况,通过RFPA2D数值模拟软件,分析了神东矿区补连塔煤矿31401综采工作面采动过程中覆岩的运动规律和导水裂隙的发育情况。结果认为补连塔煤矿31401综采工作面开采过程中,其第三含水层与其上下的砂质泥岩和粉砂岩形成了复合隔水关键层,能够有效保护上面的第一、二含水层,防止地下水资源的流失。 In order to study the influence of coal seam mining on overburden strata aquifer, the law of overlying strata movement and the development of water-hydraulic fracturing during the mining process of 31401 fully mechanized coal face in BuLinta Coal Mine in Shendong Mining Area were analyzed by RFPA2D numerical simulation software . The results show that during the mining process of 31401 fully mechanized coal face in BuLinta Coal Mine, the third aquifer and its upper and lower sandy mudstone and siltstone form the key layer of composite waterproofing, which can effectively protect the first and second aquifers above and prevent Loss of groundwater resources.