摘要
针对杜儿坪矿68308工作面瓦斯分布情况,指出综采工作面瓦斯抽采的必要性,并采用了"本煤层预抽+采空区抽采+穿层钻孔"的综合瓦斯抽采方式,实践表明,采用综合瓦斯抽采技术,降低了回采期间的瓦斯涌出量,为工作面的安全回采提供了保证。
Aiming at Duerping mine 68308 work face gas distribution, pointing ＇out the necessity offully mechanized coal face gas extraction, and using a ＂The coal seam extraction＋Mined-out area drainage＋wear layer the Predrainaging drilling＂ comprehensive gas drainage way, practice shows thatan integrated gas extraction technology to reduce the amount of gas emission during mining, the face mining provides security guarantee.
出处
《煤炭技术》
CAS
北大核心
2016年第9期127-128,共2页
Coal Technology
关键词
穿层钻孔
本煤层预抽
采空区抽采
drilling through coal seam
predrainaging
gob area drainage
