中文摘要：

青龙煤矿煤层透气性低,回采工作面瓦斯经长时间预抽仍无法消除突出危险,造成工作面回采期间瓦斯涌出量增加,严重影响生产进度。青龙煤矿采取＂穿层钻孔＋顺层钻孔＂立体抽采本煤层瓦斯、＂高位钻孔＋采空区埋管＂抽采采空区瓦斯的综合治理模式,有效地治理了工作面瓦斯涌出,杜绝了工作面回采期间瓦斯超限现象,提高了工作面的生产效率。

英文摘要：

In Qinglong coal mine, the coal seam permeability is low, the gas in mining area still cannot eliminate the danger of gas-brust after a long time and increase the gas emission, it seriously influenced the production progress. Qinglong coal mine uses the gas control modes that penetration boreholes and bedding boreholes combined to extract the coal seam gas and high level boreholes and buried pipe combined to extract the goaf gas. It controlled the working face gas emission, eliminated the phenomenon of gas exceeding and enhance production efficiency.