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。
Water valley was formed because of surface subsidence in Wangwa coal mine. So seeper may burst into underground through the collapse fracture, which posed a threat to the mine safety. Hydrogeochemical study on mixture effect between surface water and sandstone water from roof were carried out. And ions with obvious changes were found out by comparison and analysis. These ions included K^++ , Na^+ , TDS and salinity, which were regarded as the key target to inspect water quality. The study provided scientific foundation to establish a predicting system for preventing surface water bursting into underground.