摘要
介绍了八连城煤矿19#煤层赋存及开采条件,分析了煤层开采过程中的瓦斯来源,针对瓦斯分布特点,确定工作面风量,并对21906工作面采取仰角钻孔瓦斯抽采技术、天井尾巷埋管抽采技术、采空区埋管抽采及浮抽技术,并在工作面上、下尾巷采取尾巷充填以及对顶板进行预裂爆破等措施,有效防止了瓦斯事故的发生。
According to the occurrence and mining conditions of 19^# coal seam in Baliancheng Coal Mine, the sources of gas in mining were analyzed, according to the gas distribution characteristics, the air volume was determined, and elevation drilling gas drainage, pipe - burying gas drainage in patio tail lane and goal, and floating - oil technologies were applied in 21906 working face. The upper and lower tail lanes were backfilled, and the roof was pre - split blasted to prevent gas hazard.
出处
《煤炭工程》
北大核心
2015年第5期70-72,共3页
Coal Engineering
关键词
首采煤层
瓦斯防治
采空区埋管
天井
预裂爆破
first-mined coal seam
gas control
gob
pipe-burying in goal
tail lane
pre-split blasting
