摘要
巷帮钻场"边抽边掘"大直径长钻孔是拦截巷道周边煤体向掘进巷道释放瓦斯,减少掘进割煤落煤过程释放瓦斯,抽采瓦斯的有效手段。
Drift drill field＂ Exhausting while with Excavating＂ large -diameter long drill hole is effective method of intercepting release the gas which coal - pillar surrounding drift to excavated drift, reducing the release of coal gas in the process of excavating coal breaking coal cutting , exhausting gas.
出处
《煤》
2009年第3期16-16,21,共2页
Coal
关键词
瓦斯治理
钻场
边抽边掘
效果
gas control
drill field
exhausting while with excavating
effect
