摘要
煤与瓦斯突出是煤矿开采过程中的严重自然灾害之一,根据对发生突出作业地点统计,突出多数发生在煤巷掘进工作面,占所有突出次数的一半以上,主要原因是瓦斯治理不到位。为提高瓦斯抽采效果,在底板抽放巷施工穿层钻孔降低瓦斯含量的基础上,采取水力冲孔措施,增大煤层预抽范围,提高煤层透气性。通过现场实践,提高了瓦斯抽采率,实现了煤巷掘进工作面安全快速掘进。
Coal and gas outburst is one of the serious natural disasters in the process of coal mining. According to the statistics of the outstanding working place, most of them occur in the coal roadway heading face, accounting for more than half of all outstanding times. The main reason is that the gas management is not in place. In order to improve the effect of gas drainage, hydraulic punching measures are adopted to increase the pre drainage range of coal seam and improve the permeability of coal seam. Through the field practice, the gas extraction rate has been improved, and the safe and fast tunneling of the coal roadway heading face is realized.
作者
王帅宾
张艳峰
Wang Shuaibin;Zhang Yanfeng(Henan Yongjin Energy Limited cloudcovered mountain in two coal mine,Henan Yuzhou 461670)
出处
《煤矿现代化》
2018年第5期129-131,共3页
Coal Mine Modernization
关键词
煤与瓦斯突出
底板抽放巷
穿层钻孔
水力冲孔
抽采率
coal and gas outburst
floor drainage roadway
through hole drilling
hydraulic punching
extraction rate
