简易放顶煤工作面瓦斯的综合治理

Comprehensive Control of Gas in Coal Face with Simple Caving Mining

结合现场瓦斯地质条件,研究了煤层瓦斯压力与突出参数之间的关系,制订了利用顺层钻孔抽放消除煤层突出危险,利用顶板巷道和顶板走向钻孔抽排采空区瓦斯解决回采过程中瓦斯超限的综合防突措施,实现了工作面安全、高效的放顶煤开采。

Study was made on the relation between seam gas pressure and outburst parameters according to the site gas and geologic conditions, comprehensive measures against outburst were worked out including gas drainage from holes along seam to eliminate outburst hazard and gas drainage from gob by roof roadway and holes along roof strike to solve over-limit of gas concentration, thus realizing safe and efficient mining of the face.