摘要
针对镜铁山铁矿高分段崩落法试验矿块的具体情况，结合所用凿岩设备和炸药性能，试验研究了深孔爆破技术，主要包括单排孔齐发爆破、双排孔孔间微差和排间微差爆破，并统计分析了爆破块度和大块率。实践表明，所选用的爆破参数是合理的，双排孔爆破效果要优于单排孔爆破。
Directed against concrete conditions of trial ore-block to use high-sublevel cavingmethod,and connected with the used drilling equipment and explosive feature,the deep-hole blastingtechnique,mainly including simultaneous blasting of single row,delay blasting between holes and between rows of two rows are tested,and the blasting fragmentation and oversize rate are analysed. Thepactice show that the selected blasting parameters are reasonable and the blasting effect of two-row arebetter than single-row
出处
《金属矿山》
CAS
北大核心
1996年第1期16-18,共3页
Metal Mine
关键词
深孔爆破
无底柱
高分段崩洛法
铁矿
采矿
High-sublevel, Deep-hole blasting, Delay between holes, Delay between rows
