摘要
阐述了回采工作面采用U型通风采场的气体流动状况,分析了由于邻近层瓦斯大量涌入回采面,造成回采工作面上隅角瓦斯超限,给生产带来了威胁,提出了采用人工双巷布置,解决上隅角瓦斯超限的途径,并取得了显著效果。
The article discusses the use of coal face the U - field presence of gas - flow situation on the adjacent layer of gas due to the influx of mining face, caused by the work of recovery upper comer gas limits, to produce a threat, put forward The use of artificial two - lane arrangement to address the upper comer gas limits the way, and achieved remarkable results.
出处
《煤炭技术》
CAS
北大核心
2009年第4期189-190,共2页
Coal Technology
