高透气性煤层瓦斯治理方法初探

以塔山煤矿8103综放工作面为例,介绍了大产量、低瓦斯含量、高透气性煤层的瓦斯治理经验。通过对煤层初始瓦斯涌出量和衰减系数的测定,计算出本煤层钻孔抽放的不合理性,指出高位巷道密闭抽放是瓦斯治理的最佳选择。

Probe into the Gas Control Method in High Permeability Coal Seam

Taking 8103 fully mechanized caving face of Taishan Coal Mile as an example,this paper introduces the gas control experiences of the coal seam with high-yield,low gas content and high permeability,and through the measurement of initial gas flux of the seam and attenuation coefficient,calculates the irrationality of the borehole gas drainage of this coal seam,and points out that the sealed methane drainage in high-located roadway is the best choice for the gas control.