复杂地质条件下高瓦斯近距离突出煤层群煤与瓦斯共采技术

Coal and Gas Simultaneous Extraction Technology for High Gas Close Outburst Coal Seam Group Under Complex Geological Conditions

针对贵州西部复杂地质条件下瓦斯含量高、透气性低以及近距离突出煤层群开采等特点,应用煤与瓦斯共采理念,提出了保护层开采结合高抽巷及巷内穿层钻孔抽采卸压瓦斯方案,构建了突出煤层群的煤与瓦斯共采技术体系,有效解决了突出煤层群开采的煤与瓦斯突出及瓦斯超限的难题,为安全高效生产创造了条件,实现了煤与瓦斯安全高效共采。

Aiming at the characteristics of high gas, low permeability and close distance outburst coal seam group mining in western guizhou complex geological conditions, the application of coal and gas simultaneous extraction concept, this paper puts forward protec- tive seam mining combined with high pumping lane and cross hole drilling extraction pressure relief gas plan, constructs the coal and gas simuhaneous extraction technology system of coal seam group, and effectively solves coal and gas outburst and gas overrun problems of outburst coal seam group mining, creates the conditions for safety and efficient production, realizes coal and gas safety and efficiency simultaneous extraction.