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煤炭资源是我国的主要能源,一直以来,煤炭的开采受到多种矿井地质灾害的威胁,其中最大的安全问题就是煤层底板破坏和矿井突水事故。底板突水的实质是下伏承压水沿底板岩层内部的通道突破隔水层的阻隔涌入到采掘工作面,是地下水和底板岩层相互作用的结果,隔水层的阻抗性能十分重要的,因此研究开采矿压对底板的破坏尤为重要。煤炭开采对底板岩层的破坏是有规律可循的,本文探讨了煤矿开采对煤层底板岩层的破坏规律以及煤矿开采水害的预防治理。
Coal resources are the main energy sources in our country. All along, coal mining has been threatened by a variety of mine geological disasters, of which the biggest safety problem is the destruction of seam floor and water inrush accidents. The essence of water inrush of the floor is that the underlying confined water penetrates into the mining face through the barrier of the aqueduct within the floor rock strata and is the result of the interaction between the groundwater and the floor rock strata. The impedance performance of the aquitard is very important, Therefore, the study of mining pressure on the destruction of the floor is particularly important. Coal mining on the floor rock destruction is a rule-based, this paper explores the coal mining floor rock strata destruction rules and coal mine water damage prevention and control.