爆破2026，Vol.43Issue(1)：123-129,7.DOI:10.3963/j.issn.1001-487X.2026.01.013
露天采场铜钴氧化矿蜂窝状矿石构造爆破效果的改善
Improvement of Blasting Performance for Honeycomb-structured Copper-cobalt Oxide Ore in Open-pit Mines
杜军 1王明伟 1郑俊伟 1金宏洋 1冯凯 1刘增辉 1哈守斌1
作者信息
- 1. 山西江阳工程爆破有限公司,太原 030041
- 折叠
摘要
Abstract
Open-pit mining areas,particularly those containing copper-cobalt oxide ores,frequently feature hon-eycomb-structured ore bodies with extensive geological discontinuities,including joints and cavities,creating substan-tial difficulties during stripping operations.This phenomenon is especially pronounced during blasting operations,manifesting as low borehole formation rates,elevated high boulder yield,inadequate fragmentation,and hard toe.All of which significantly compromise subsequent excavation and loading efficiency while simultaneously introducing op-erational safety risks.To optimize blasting effects in honeycomb-structured copper-cobalt oxide ores while maintaining economic feasibility,three key improvements were implemented:enhancing drilling success through reduced depth/diameter,increasing charge height via anti-static PVC pipe confinement and cartridge hoisting,and parameter adjust-ments to satisfy subsequent construction requirements.The results demonstrate that this approach substantially en-hances post-blasting performance metrics,including boulder yield,hard toe occurrence,and fragmentation quality,ef-fectively satisfying subsequent excavation and haulage requirements while optimizing stripping operations for the fol-lowing mining cycle.关键词
台阶爆破/蜂窝状矿石构造/大块率/松散度/根底率/约束装药Key words
bench blasting/honeycomb ore structure/boulder yield/looseness/hard toe rate/constrained charge分类
矿业与冶金引用本文复制引用
杜军,王明伟,郑俊伟,金宏洋,冯凯,刘增辉,哈守斌..露天采场铜钴氧化矿蜂窝状矿石构造爆破效果的改善[J].爆破,2026,43(1):123-129,7.
