24102采面采空区瓦斯治理方案与效果

为有效治理24102工作面采空区瓦斯,基于工作面煤层赋存特征,采用Fluent数值模拟软件进行采空区瓦斯运移规律的分析,根据数值模拟结果得出高位钻孔+埋管抽采瓦斯效果良好,进一步结合工作面实际进行高位钻孔和埋管抽采各项参数的设计,并在抽采方案实施期间,进行瓦斯抽采数据及工作面区域瓦斯浓度的测试.结果表明:瓦斯治理方案实...

Gas Control Plan and Application Effect in Goaf of 24102 Mining Face

To effectively control the gas in the goaf of the 24102 working face,based on the coal bed occurrence characteristics of the working face,Fluent numerical simulation software is used to analyse the gas movement law in the goaf,and the high-level drilling+buried pipe extraction gas is obtained according to the numerical simulation results,which proves good effect.Various parameters of high-level drilling and buried pipe extraction are designed combining with the actual working face.The gas extraction data and the gas concentration in the working face area are tested during the implementation of the extraction plan.Results show that after the implementation of the gas control plan,the gas drainage rate is over 30%.During the face mining,the gas concentration in the upper corner is always stable in the range of 0.1%~0.5%.The gas control effect is remarkable,which guarantees the safety mining of the working face.