缓倾斜低透性煤层群上行开采瓦斯抽放技术

Gas Drainage from Flat-pitching Group of Coal Seams with Low Gas Permeability during Their Ascending Mining

详尽地介绍了缓倾斜低透性煤层群的上行开采瓦斯抽放技术 ,并讨论有关技术参数的确定方法 ,指出上行开采抽放瓦斯是开采缓倾斜低透性煤层群处理瓦斯、防止煤与瓦斯突出的有效手段 ,也将是大量开发煤层气的有效途径之一。

The paper give a detailed description of the gas drainage techniques for flat-pitching group of coal seam with low gas permeability during their ascending mining and discusses the method of determining some technical parameters. It points out that the gas drainage during ascending mining is an effective means for handling gas and preventing coal and gas outburst in the mining process of flat-pitching group of coal seams with low gas permeability.