摘要
阐述了水力冲孔措施的消突机理,着重解释了水力冲孔钻孔内割缝对煤层巷道地应力、瓦斯压力的影响以及对煤体透气性的影响,同时结合现场情况,对普通瓦斯抽采效果和采用水力冲孔之后的瓦斯抽采效果进行对比,说明水力冲孔增透瓦斯抽采效果,对矿上减少抽采时间起到作用。
Explained the outburst elimination principle of the hydraulic flushing borehole measuresis,explained influence of hydraulic punching drill inner slotted for seam roadway ground stress,gas pressure and the influence of the air permeability of coal body,combining with the field situation,compared to ordinary gas drainage gas recovery effect and use after hydraulic flushing drainage,showed that the hydraulic punching antireflection gas drainage effect,reduce of mine drainage time play a role.
出处
《煤炭技术》
CAS
北大核心
2015年第5期142-144,共3页
Coal Technology
关键词
水力冲孔
瓦斯抽采
孔内割裂
hydraulic flushing borehole
gas drainage
hole separation
