薛虎沟煤业复采煤层掘进工艺技术研究

Study on tunnelling technique in compound mining coal seam of Xuehugou coal industry

针对小煤矿采煤方法落后,导致整合矿井煤炭资源顶板破碎,且有大面积采空区,严重影响矿井正常采掘活动的情况,以霍州煤电薛虎沟煤业2号复采煤层为工程背景,分析了复采煤层合理的巷道掘进断面规格、掘进方式及支护方式,分析技术选择FLAC3D数值模拟技术,重点分析矿井巷道,使分析结果更加趋于合理化,为实际施工提供合理的解决措施,实际应用效果显著。

Based on broken coal mine resources and large mined out areas caused by backward mining method of small coal mine, No.2 compound mining coal seam in Xuehugou Mine was taken as engineering background. Rational specifications of roadway driving face, driving method and support mode in compound mining coal seam were analyzed, easpecially for mine laneway. FLAC3D numerical simulation technique was selected. All of these made results more rational, provided reasonable solutions for actual construction and the effect was remarkable.