CAJ | 학술논문

为了解决渝阳煤矿突出矿井煤层群开采保护层工作面时瓦斯涌出的问题，采取了“U+尾排”通风、大直径深孔预抽本煤层瓦斯、底板穿层钻孔抽采瓦斯等综合治理措施，治理效果表明：回采期间工作面回风流中瓦斯体积分数控制在0．7%以下，工作面月产量提高了50%。解决了保护层工作面的瓦斯超限问题，同时提高了工作面的回采速度，实现了安全生产。
위료해결투양매광돌출광정매층군개채보호층공작면시와사용출적문제，채취료“U+미배”통풍、대직경심공예추본매층와사、저판천층찬공추채와사등종합치리조시，치리효과표명：회채기간공작면회풍류중와사체적분수공제재0．7%이하，공작면월산량제고료50%。해결료보호층공작면적와사초한문제，동시제고료공작면적회채속도，실현료안전생산。
In order to solve the problem of gas emission during the extraction of the protective seam in Yuyang Coal Mine, comprehensive gas control measures such as “U+ tailing way drainage” ventilation, gas pre-drainage from the seam being mined by large-diameter deep holes, gas drainage by crossing hole in the floor and so on were taken. The result showed that the gas concentration in return air of the working face was controlled below 0. 7% during coal mining and the month coal output of the face raised by 50%. This thus solved the gas overrun problem in the protective seam working face, improved the drawing rate of the face and realized safe production of the mine.