屯兰矿18403工作面上隅角瓦斯治理研究

Study on gas management in the upper corner of 18403 working face of Tunlan Mine

为解决屯兰矿18403工作面上隅角瓦斯聚集威胁工作面安全生产的问题,采用现场实测和数值模拟相结合的方法对高抽巷布置层位及不同埋管埋深下上隅角瓦斯变化情况进行分析,确定了当埋管深度为30~40 m时,高抽巷距离煤层底板和回风顺槽20 m时瓦斯抽采效果最佳,为矿井的安全生产提供了一定借鉴。

In order to solve the problem of gas gathering in the corner of 18403 working face which threatened the safe production of working face,Tunlan mine used the combination of field measurement and numerical simulation to analyze the change of gas in the upper corner of high extraction lane with different burial depths,and determined that the gas extraction effect was best when the burial depth was 30~40 m and the high extraction lane was 20 m away from the coal seam floor and air return roadway,which provided some reference for the safe mining.