露天采矿技术2025，Vol.40Issue(3)：54-57,4.DOI:10.13235/j.cnki.ltcm.20240254
宽孔距小抵抗线穿爆工艺在安家岭露天矿的应用
Application of wide hole spacing and small resistance line blasting technology in Anjialing Open-pit Mines
吕德仙 1韩大伟1
作者信息
- 1. 中煤平朔集团有限公司 安家岭露天矿,山西 朔州 036006
- 折叠
摘要
Abstract
In order to effectively improve the quality of deep hole blasting in Anjialing Open-pit Mine and reduce the generation of large blocks and bottom pulling,a comparison is made between rectangular hole layout and wide hole spacing small resistance line triangular hole layout blasting tests using a diameter of φ 250 mm roller drill.The results show that the use of wide hole spacing and small resistance line triangle piercing blasting technology has significant advantages in deep hole step blasting in open-pit mines,which optimizes the utilization of explosive energy more effectively than rectangular piercing blasting technology,greatly improves the blasting quality,and successfully reduces the unit consumption of explosives.关键词
三角形布孔/矩形布孔/台阶爆破/炸药单耗/宽孔距小抵抗线/爆破质量Key words
triangle hole layout/rectangular cloth hole/bench blasting/specific charge/wide hole spacing and small resistance line/blasting quality分类
矿业与冶金引用本文复制引用
吕德仙,韩大伟..宽孔距小抵抗线穿爆工艺在安家岭露天矿的应用[J].露天采矿技术,2025,40(3):54-57,4.
