突出煤层群保护层开采及巷道布置研究

Study on protective seam mining and roadway layout of outburst coal seam group

针对西上庄矿井高瓦斯、煤与瓦斯突出煤层群开采存在的瓦斯防治难题,选择弱突煤层作为保护层开采,采用理论计算判定方法论证了下保护层开采的可行性,确定了下保护层的保护垂距。在此基础上对采区主要巷道系统布置方式进行研究,确定突出煤层群开采的主要巷道布置参数。

Aiming at gas prevention and control problem existed in high-gas and coal and gas outburst coal seam group mining,and choosing a weak outburst coal seam as a protective seam,the feasibility of underside protective seam mining was demonstrated by theoretical calculation methods,and the protective vertical distance of underside protecting seam was determined.And on this basis main roadway system layout of mining area was researched,then the main roadway layout parameters of the outburst coal seam group mining were determined.