贵州大河边煤矿上覆岩层导水裂隙带的发育高度和分布形态研究

Research on Development Height and Distribution Pattern of Water Conducting Fracture Zone of Overlying Strata in Dahebian Coal Mine,Guizhou Province

大河边煤矿的3#煤层开采引起上覆移动变形破坏,含水层的水渗入到130101工作面,不仅严重破坏矿区的生态环境,而且威胁到矿井的安全生产问题。为进一步研究上覆岩层破坏导水裂隙带的发育高度和分布形态,保护水资源,提高煤炭资源回收率,保障矿井安全生产,通过应用传统经验计算公式和数值模拟计算相结合的研究方法,给出导水裂隙带分布形态和最大高度,最后通过工程实际测量方法验证其可行性,该方法对保护矿区生态环境具有重要的科学研究意义和应用价值。

The mining of No.3 coal seam in Dahebian Coal Mine causes overburden movement defor⁃mation and failure,and aquifer water seeps into 130101 working face,which not only seriously damages the ecological environment of the mining area,but also threatens the safety production of the mine.In order to protect water resources,and improve the recovery rate of coal resources,and ensure the safety of mine pro⁃duction,it is necessary to further study the development height and distribution pattern of water-conduct⁃ing fractured zone in overlying strata.In this paper,the distribution pattern and maximum height of water conducting fractured zone are given by applying the research method of combining traditional empirical cal⁃culation formula and numerical simulation calculation.Finally,the feasibility of the method is verified by the practical measurement method.The method has important scientific significance and application value for protecting the ecological environment of the mining area.