摘要
通过对林南仓矿东翼11煤层1119下工作面进行高位钻孔及采空区埋管抽放试验,分别测试并分析了抽放效果,并针对工作面不同特点进行了全矿井推广应用。实践表明:高位孔抽放对解决工作面上隅角瓦斯超限效果显著;埋管抽放埋深超过50 m,抽放效果明显下降,对解决林南仓矿因直接顶垮落不能填满采空区的采煤工作面瓦斯治理尤为适用。
Based on tests of high drilling and buried pipe drainage in 11192 working face of 11 coal seam in east wing of Linnancang Mine, drainage effects were tested and analyzed respectively, which had applied and popularized to the whale mine according to different characteristics of working face. The practice showed that high position bores methane drainage technique made a difference in controlling gas in the upper corners of working face and gas drainage effect dropped significantly when length of pipes were buried over 50 meters, which could be well used to gas control in coal face which could not be suffused with the breakage of direct top.
出处
《煤炭与化工》
CAS
2017年第1期155-157,共3页
Coal and Chemical Industry
关键词
采空区
瓦斯治理
高位钻孔
埋管抽放
goof
gas control
high position bores
pipe laying methane drainage
