漳村煤矿开采对浅表含水层影响研究

Study on Mining in Zhangcun Mine Affected to Aquifer in Shallow Overburden

在分析漳村煤矿地质采矿条件的基础上,利用理论分析和数值模拟计算的方法,综合分析了采动导水裂缝带的发育高度,并通过现场勘查,分析了地表沉陷裂缝发育特征。研究结果表明:工农业用水量大、奥灰含水层水位下降和小煤矿的浅层开采是造成矿区浅表含水层水位下降、水量减少的主要原因,而非漳村煤矿采动产生的导水裂隙及地表裂隙导通浅表含水层失水所致。

Based on the analysis on geological and mining conditions of Zhangcun Mine,the theoretical analysis and the numerical simulation calculation method was applied to comprehensively analyze the development height of the mining water flow crack zone.The site exploration survey was applied to analyze the crack development features of the surface ground subsidence.The study results showed that the high water consumption of the industrial and agricultural application,the water table drop of the aquifer in the Ordovician limestone and the shallow seam mining of the small mine were the main causes of the water table drop and water quantity reduced in the aquifer of the shallow overburden in the mining area.The water lost in the aquifer of the shallow overburden was not caused by the water flow cracks occurred by the mining of Zhangcun Mine and not caused by the surface ground cracks.