工作面上覆采空区积水防治技术分析与应用

Analysis and Application of Seeper Control Technology in Overlying Goaf at Working Face

为解决采空区积水造成的下煤层安全开采问题,本文以马脊梁煤矿8105工作面为研究对象,采用现场测试、理论分析和理论计算等方法对上覆采空区积水条件下工作面安全回采技术展开研究。研究结果表明:①由于雨季大气降水沿采动裂缝下渗,造成8105工作面上覆采空区积水;②断层和构造裂隙成为8105工作面与上覆采空区的水力通道;③通过合理布置地面探放水方案,实现了8105工作面的安全回采。

By field test,theoretical analysis and theoretical calculation,the author probes into the safety mining technology under the condition of the seeper in the underlying goaf at 8105 working face of Majiliang Colliery,whose research results show that atmospheric precipitation seepage along mining cracks in rainy season results in water accumulation in the overlying goaf of 8105 working face;faults and structural fissures easily causes hydraulic passages between 8105 working face and goaf;and a reasonable ground water detection and release plan realizes the safe mining at 8105 working face.