摘要
寺家庄矿属于煤与瓦斯突出矿井,通过CO2预裂爆破使钻孔壁产生径向环形的破裂圈,预裂煤层,产生裂隙系统,从而达到对煤层的造缝卸压增透消突的目的。
Sijiazhuang Coal Mine belongs to coal and gas outburst mines, through CO2 presplit blasting, in the borehole wall, radial circular circle of rupture will be produced, which pre-splits coal seam and generates the fissure system, so as to achieve the unloading and the anti-reflection of the coal seam.
作者
张永春
Zhang Yong-chun(Shanxi Yangquan Sijiazhuang Coal Industry Co., LTD., Shanxi Jinzhong 04530)
出处
《山东煤炭科技》
2018年第5期92-93,共2页
Shandong Coal Science and Technology
关键词
CO2预裂
透气性
卸压消突
CO2 precracking air permeability pressure relief and outburst elimination
