三道岭露天矿岩层构造及爆破技术对爆破效果的影响  

Influence of rock structure and blasting technology on the blasting effect in Sandaoling Open-pit Mine

作　　者：孙金良 SUN Jinliang(Lu'an Xinjiang Coal Chemical Group Co.,Ltd.,Hami 839003,China)

机构地区：[1]潞安新疆煤化工有限责任公司露天煤矿

出　　处：《露天采矿技术》2019年第6期1-3,6,共4页Opencast Mining Technology

摘　　要：为提高三道岭露天煤矿剥离台阶爆破质量,立足于现有穿孔设备,从岩层构造及爆破技术入手,认真分析爆破剥离台阶的岩层产状和节理裂隙对爆破产生的影响。并对爆破技术中网孔技术参数、装药结构及起爆顺序进行了优化,有效提高了露天煤矿的剥离爆破效果。In order to improve the blasting quality of stripping bench in Sandaoling Open-pit Mine, based on the existing perforation equipment and the rock structure and blasting technology, the article analyzes the rock occurrence of stripping bench and influence of joint fissures on blasting. The article optimizes the technical parameters of mesh hole in blasting technology and the change of charge structure and initiation sequence, which improves the effect of stripping blasting in open-pit coal mine.

关 键 词：露天煤矿 岩层产状 节理裂隙 孔行距 抵抗线 装药量 装药结构 起爆顺序 

分 类 号：TD824.2[矿业工程—煤矿开采]