华北隐伏型煤矿地下水水化学演化与突水水源判别

Evolution of Hydrochemistry and Discrimination of Water-inrush Sources of Groundwater in the Blind Coal Mining Area in North China

我国华北隐伏型煤田突水水源判别普遍注重单一含水层的静态水化学场分析,很少考虑煤矿开采进程中多含水层地下水系统水化学演化规律。为此,本文以典型华北隐伏型煤田———淮北煤田为研究示范,提出了地下水渗流与水化学演化模式。而且以淮北煤田境内的芦岭煤矿Ⅱ1016工作面出水点水化学动态变化为例,基于地下水渗流与水化学演化模式,正确判别出该工作面出水水源与渗流突水模式。研究成果对我国华北隐伏型煤矿水灾防治提供重要理论支持。

The analysis of static hydrochemistry of single aquifer is generally paid attention in the discrimination of water-inrush sources in the blind coal mining area in North China, and the evolution of hydrochemistry of multi-aquifer of the groundwater system in the process of coal mining is scantly considered. For this reason, the Huaibei coal area -- a typical blind coal mining area in North China being taken as research demonstration, the groundwater seepage and the model of hydrochemistry evolution are proposed. In addition, the dynamic changes of hydrochemistry of the water point in Ⅱ 1016 work face of Luling coal mine which is located in Huaibei coal area are taken for example, based on the groundwater seepage and the evolution model of hydrochemistry, then the water sources and the mode of seepage water inrush of the work face have been correctly discriminated. An important theoretical support of prevention and control of coal mine flood in the blind coal mining area in North China is provided in this research.