摘要
针对大佛寺煤矿的高瓦斯涌出问题,分析了该矿40108综放工作面瓦斯涌出来源及涌出构成,分析了工作面及采空区瓦斯浓度分布规律;工作面瓦斯涌出量与日产量、推进度和配风量的关系,分析得出了采空区向工作面瓦斯涌出的比例系数及3种影响因素作用下工作面瓦斯涌出量的变化规律,可为该矿瓦斯灾害的预防提供决策依据。
According to the high gas emission in Dafosi Coal Mine, the paper analyzed the gas emission source and composition in the 40108 fully mechanized caving mining face, researched the gas concentration distribution law in mining face and gob, discussed the re- lationship between the amount of gas emission with daily capacity, advance degree and air distribution and obtained the proportional co- efficient of gas emission and the gas emission change law. The study can offer the decision for gas disaster prevention in coal mine.
出处
《陕西煤炭》
2013年第4期50-53,共4页
Shaanxi Coal
关键词
综放面
影响因素
瓦斯涌出规律
采空区
fully mechanized caving mining face
influencing factors
gas emission law
gob
