【摘要】 以潞安集团司马煤业公司1211工作面为例,分析了瓦斯抽采存在的主要问题,对抽采钻孔布置方式、施工工艺、封孔方法进行优化,提高了工作面瓦斯抽采率,降低了采掘工作面瓦斯涌出量,保证了矿井安全生产。更多还原

【Abstract】 Taking 1211 working face of Luan Mining Industry Group as an example, the paper analyzed the main problems existing in gas extraction and optimized the drilling arrangement, construction technology and sealing method, which improved gas extraction rate of the working face, reduced the gas emission of the mining face, and ensured the safe production of the mine.更多还原