浅析长壁工作面采空区瓦斯的产生及治理

A Preliminary Analysis of the Gas Generation and Control in the Goaf a Longwall Face

本文论述了采空区瓦斯的来源及在空间的分布规律 ,提出了采空区爆炸带的新概念及采空区瓦斯等值线 (或面 )的理念。得出了采空区瓦斯含量大瓦斯爆炸带反而相对较窄的结论。对采空区瓦斯治理措施进行了逐个分析 ,指出了每个方法的作用机理。

The paper elaborates on the spatial distribution of goafs,the sources of gas in goafs and the law govering the spatial distribution of gas.Following that,a new concept relating to the gas explosion zone in goaf and goaf gas contour line(plane)is proposed.It is concluded that the gas explosion zone tends to become relatively narrower with the increase of gas content in goaf.The paper presents a thorough analysis of the individual goaf gas control measures as well as the mechanism of action and merits and drawbacks of each measure