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在分析近距离煤层群上行开采机理与可行性的基础上,为尽可能减少多煤层高瓦斯矿井开采期间瓦斯事故,探讨了开采多煤层保护层的方法.通过贵州盘江矿区金佳和月亮田两个矿井实践,采用上行卸压开采的技术方案,解决了开采中所产生的瓦斯突出、煤尘爆炸等问题,并在总结生产实践的基础上,提出了合理的开采方案及适用条件,研究成果对煤矿安全高效生产及相关环境控制都具有重要的意义.
Based on the analysis of the mechanism and feasibility of ascending mining in close distance coal seams, in order to reduce the gas accidents during the mining of high-gas mines with multi-seams as much as possible, the method of mining multiple coal seams is discussed.By the method of Jinjia and Moonland The two mines practiced and adopted the technical scheme of upward pressure relief mining to solve the problems of gas outburst, coal dust explosion and so on. Based on the summary of production practice, a reasonable mining scheme and applicable conditions were put forward, The results are of great significance to the safe and efficient production of coal mines and related environmental control.