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首页> 外文期刊>Mine water and the environment >Concurrent Mining During Construction and Water-Filling of a Goaf Groundwater Reservoir in a Coal Mine
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Concurrent Mining During Construction and Water-Filling of a Goaf Groundwater Reservoir in a Coal Mine

机译：煤矿采空区地下水水库建设与注水同时开采

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摘要

Coal mining has aggravated water scarcity in the arid areas of northwestern China. Concurrent aquifer drainage, mining, and water storage is proposed, using a goaf groundwater reservoir (GGWR) to preserve the area's fragile ecosystem. By continuously draining the overlying aquifer of the working face and simultaneously storing water in the goaf while the working face is mined, this technology can maintain the storage capacity of the GGWR without jeopardizing mine safety. The drainage process was simulated, based on mining conditions of the 11201 working face in the Yuandatan coal mine, to investigate how water pressure variations in the overlying aquifer would affect GGWR construction. Then, two drainage borehole arrangements were simulated. The research demonstrated that the resulting drainage intensity would enable continuous operation of "aquifer drainage-coal mining-water storage", and that the design satisfies the in-situ drainage and storage requirements. Therefore, concurrent construction and water-filling of the GGWR is feasible.
机译：煤炭开采加剧了中国西北干旱地区的水资源短缺。提出了利用采空区地下水水库（GGWR）来同时进行含水层排水，采矿和储水的措施，以保护该地区脆弱的生态系统。通过连续排空工作面上方的含水层，并在开采工作面的同时将水存储在采空区中，该技术可以在不损害矿井安全的情况下保持GGWR的存储容量。根据元大滩煤矿11201工作面的开采条件，对排水过程进行了模拟，以研究上覆含水层中的水压变化如何影响GGWR的施工。然后，模拟了两个排水井眼布置。研究表明，由此产生的排水强度将使“含水层排水-煤矿开采-水存储”的连续运行成为可能，并且该设计满足现场排水和存储的要求。因此，GGWR的同时施工和注水是可行的。

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