摘要
基于李村煤矿煤层结构复杂、煤层松软、透气性低,存在本煤层瓦斯抽采效率低、难度大等问题,在1302 X作面进行了水力造穴增透技术试验。效果分析表明,采用水力造穴增透技术的单孔瓦斯抽采纯量是普通单孔的7.38倍。
Aiming at the low gas drainage efficiency and difficulties due to the complicated structure,soft coal seam and low air permeability in No.3 coal seam of Licun Colliery,air permeability enhancement technology by hydraulic cave-making is introduced in gas drainage at 1306 working face,whose single-borehole net drainage volume is 7.38 times as ordinary single borehole and drainage amount per myriameter 7.64 times.
作者
郭孝星
Guo Xiaoxing(Licun Colliery,Cilinshan Coal Industry Co.,Ltd.,Lu*an Group,Changzhi,Shanxi 046100)
出处
《江西煤炭科技》
2020年第1期92-93,99,共3页
Jiangxi Coal Science & Technology
关键词
低透气性煤层
瓦斯抽采
水力造穴增透技术
效果分析
coal seam
low air permeability
gas drainage
air penneability enhancement technology by hydraulic cave-making
effect analysis
