深部煤矿开采瓦斯综合治理技术研究

Research on Comprehensive Gas Control Technology of Deep Coal Mining

针对深部煤矿开采中瓦斯压力、瓦斯含量和地应力均较大的问题,提出通过开采保护层、瓦斯抽采减少瓦斯含量、降低瓦斯压力,通过水力化措施增加煤层透气性。在新庄孜煤矿、潘一矿、平顶山矿区、牛儿庄煤矿等深部煤矿的试验表明:采取上述措施后,瓦斯含量明显降低,瓦斯抽采量和煤层透气性系数显著增加。因此,以开采保护层、瓦斯抽采和水力化措施为主的瓦斯综合治理措施,能够明显减少瓦斯灾害,保证深部开采的安全生产。

Due to the gas pressure, gas content and ground stress were all large in deep coal mining, the methods were proposed to decrease the gas pressure and gas content through protective seam mining and gas drainage, and increased coal seam permeability by hydraulic measures.The field test in deep coal mine ,such as Xinzhuangzi Coal Mine ,Panyi Mine, Pingdingshan Mining Area and Niuerzhuang Coal Mine showed that, after adopting these measures, the gas content was decreased obviously, the gas drainage value and coal seam permeabili- ty coefficient were increased significantly.Therefore, the comprehensive gas control measures based on protective seam mining,gas drainage and hydraulic measures could obviously reduce gas disaster and ensure safety in deep coal mining.