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为了查明恒源煤矿-600m水平开采受底板高承压太灰含水层的威胁,基于地下水井流理论,对太灰含水层进行了大型群孔干扰放水试验,查明了6煤底板太灰含水层的富水性和补径排条件。结果表明太灰含水层岩溶发育且存在一定程度的非均一性,径流条件较好,矿区内不存在不易疏降的高水位异常区,在此基础上提出了该矿深部开采以疏水降压为主、注浆为辅的底板防治水技术方案,为保障-600m水平6煤安全开采提供合理依据。
In order to find out that the 600m horizontal mining in Hengyuan Coal Mine is threatened by the high-pressure overlying aquifer in the bottom of the coal mine, a large-scale pore-water disturbance discharge experiment was conducted on the tar ash aquifer based on the groundwater well flow theory. Aquifer rich water and make-up conditions. The results show that there is a certain degree of heterogeneity in karst aquifers and a high degree of runoff conditions. There is no high water level anomalous zone in the mining area which is not easy to be dredged. On the basis of this, The main floor, grouting supplemented by the floor of the water technology program to protect the level of -600m 6 coal to provide a reasonable basis for safe mining.