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煤矿主采煤层(6煤)底板受高承压太灰含水层的威胁,对太灰含水层进行了大型群孔干扰放水试验,并重点对试验过程中的地下水化学特征进行取样化验,分析放水过程中的地下水化学动态特征变化。结果表明在放水实验过程中太灰水化学特征并无明显变化,太灰水补给来源为水化学特征相近的层间径流补给,且太灰水与深部奥灰水无明显水力联系,为煤矿防治水规划提供了合理依据。
The main coal seam (6 coal) floor of the coal mine is threatened by the high-pressure too-ash aquifer, and the large-scale pore-water disturbance discharge test is conducted on the tar ash aquifer. The sampling chemical analysis of the groundwater chemistry during the test is focused on Changes of Chemical Dynamic Characteristics of Groundwater during Water Leakage. The results show that there is no obvious change in the chemical characteristics of too-gray water during the discharge experiment. The sources of too-gray-water recharge are inter-layer runoff recharge with similar hydration characteristics. There is no obvious hydraulic connection between the too-gray water and the deep Ordovician gray water, Water planning provides a reasonable basis.