王洼煤矿因采空区地表下陷并形成积水凹地,塌陷区积水有可能沿塌陷裂隙渗入井下,对矿井安全生产构成威胁。通过对地表水和煤系顶板砂岩水混合效应的水化学研究,利用对比分析方法找出变化明显的特征离子,将其作为水质监测的重点对象(K++Na+、TDS和矿化度),为建立地表水是否溃入矿井的预警系统提供了科学依据。 Due to the surface subsidence and the formation of concave water in the Wangwa coal mine, the water in the subsidence area may penetrate into the hole along the collapse collapse and pose a threat to mine safety. Through the hydrochemical study on the mixing effect of surface water and coal-bed top sandstone water, the comparative analysis method was used to find out the obvious change of characteristic ions as the key objects of water quality monitoring (K ++ Na +, TDS and salinity) It provides a scientific basis for establishing an early warning system that surface water can break down into a mine.