摘要
介绍东山煤矿三水平下五采3#上层高瓦斯采区,瓦斯涌出量大,上转角及回风瓦斯超限等问题,采用高位钻孔、仰角钻孔进行瓦斯抽放,并对有关参数进行研究,确定前后钻孔的最佳重合距离、最佳钻孔参数,解决了上转角和回风的瓦斯超限问题。
Dongshan Coal Mine exists the problems of high gas, a large quantity of gas emission, on the comer and return air gas overlimited, uses high drilling, elevation drilling gas drainage and studied to determine the best overlap distance, the optimum parameters before and after drilling, solved the gas drainage problems.
出处
《煤炭技术》
CAS
北大核心
2009年第10期101-104,共4页
Coal Technology
关键词
钻孔
治理
瓦斯
drilling
governance
gas
