高瓦斯三巷连掘工作面瓦斯综合防治措施与应用

Comprehensive Gas Prevention Measures Adopted on the Successive Coal-mining Faces of Three Tunnels with Higher Gas Concentration and Their Application

以晋煤集团高瓦斯三巷连掘工作面为例,介绍了耳朵(掩护)钻场和横穿钻场先抽后掘、先探后掘、二进一回,高冒区及时充填,双风筒不间断供风等具有很强针对性的瓦斯防治措施。

Taking the successive coal-mining faces of three tunnels with higher gas contents in Jincheng Coal Mining Group as the example, this paper introduces some gas prevention measures with very strong pertinence, such as extractingbefore-tunneling, drilling-before-tunneling, two-inlet-air and one-return-air in ear drill site and crossing drill site, timely filling in higher roof collapse zone, and incessant ventilation with dual air pipes, etc,.