单侯煤矿矿井水文地质条件与防治水难易程度分析

Analysis of hydrogeological condition and difficulty degree of water prevention and control in Danhou Mine

以单侯煤矿为工程背景,介绍了单侯煤矿井田内含水层、隔水层分布特征,分析了单侯煤矿充水水源、充水通道等矿井充水因素,分别就各充水水源分析了煤层开采防治水的难易程度,单侯煤矿开采1号煤层时,底板隔水层厚度薄,承压较大,防治水难度较大;开采5号煤层时,局部以顶板淋水的形式进入采掘工作面,防治水易于进行。

Taking Danhou Mine as the engineering background,this paper introduced the distribution characteristics of the aquifer and aquifuge in Danhou Mine field,and analyzed mine water filling factors such as the water source and water filling channel in Danhou Mine.Difficulty degree of water prevention and control in coal seam mining was analyzed based on each water source.When No.1 coal seam was mined in Danhou Mine,the floor aquifuge thickness was thin,the pressure was relatively high,and the difficulty degree of water prevention and control was relatively high.When No.5 coal seam was mined,the water locally entered the mining and excavation working face in form of roof water leakage.The water prevention and control was easy to carry out.