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随着煤层开采深度的增加,煤层底板承压充水含水层发生水害的可能性随之增加,对基础地质参数补充和再认识具有重要的意义。以陈四楼煤矿南部深部采区为研究对象,通过非稳定流放水试验分析了陈四楼煤矿南部采区灰岩岩溶含水层的水文地质条件及其与奥灰水的水力联系,计算了灰岩含水层的水文地质参数。试验表明:区域内的太灰含水层属中等富水性至强富水性,不存在降不下去的高水位异常区,可以采取疏降和底板注浆加固的办法防止底板突水。
With the increase of coal mining depth, the possibility of water damage in the confined aquifer of coal seam floor increases, which is of great significance to complement and re-recognize the basic geological parameters. Based on the deep mining area in the southern part of Chen Sihou Coal Mine, the hydrogeological conditions of limestone karst aquifer and the hydraulic connection with Ordovician limewater in the mining area in southern Chensilou Coal Mine were analyzed by unsteady flow discharge test. Hydrogeological Parameters of Rock Aquifer. The test shows that the over-water aquifer in the area is of moderate water-rich to strong water-rich, and there is no abnormal high-water anomalous area that can not go down. The water inrush of the floor can be prevented by dredging and floor grouting reinforcement.