抽采卸压技术在回采工作面初采期瓦斯治理中的应用

Application of extraction and pressure relief technology in gas treatment at the initial stage of recovery working face

瓦斯是煤层安全回采的重大隐患,针对放顶煤工作面回采初期瓦斯超限的问题,开元矿9801工作面采用了组合斜巷卸压抽采瓦斯技术。结果表明,组合倾斜巷瓦斯抽采技术有效地解决了开元矿9801工作面初采期的瓦斯治理问题,为煤层群开采时进行瓦斯治理的有效方法。

gas is a major hidden danger for safe mining of coal seam. Aiming at the problem of gas overrun in the early stage of caving face,Kaiyuan mine 9801 working face adopts combined inclined roadway pressure relief gas drainage technology. The results show that the gas drainage technology of combined inclined roadway effectively solves the problem of gas control in the initial mining period of the 9801 working face of Kaiyuan mine, and is an effective way for gas control in the mining of coal seam group.