露天采矿技术2024，Vol.39Issue(1)：57-60,4.DOI:10.13235/j.cnki.ltcm.2024.01.012
神山石灰岩矿边坡预裂爆破数值模拟及应用
Numerical simulation and application of slope pre splitting blasting in Shenshan limestone mine
钱明渊 1程路 1袁政委 1崔子恒 1鲁海生 1姚昌盛1
作者信息
- 1. 安徽江南爆破工程有限公司,安徽 宁国 242300
- 折叠
摘要
Abstract
In order to improve the effect of controlled blasting for the slope of Shenshan chute platform,the article proposes a wide hole spacing and large aperture presplitting blasting method for controlled blasting for slope formation.In the design,the article selects eccentric charging structure,studies and optimizes various blasting parameters,and puts forward the blasting quality control measures.We use the numerical simulation technology to analyze the seam forming process of pre splitting holes.The results show that the pre-fracture of rock mass is penetrated at 425 μs,and the effect of joint formation is obvious,and there is no obvious over-excavation phenomenon.After the field blasting experiment,the slope wall surface is flat,there is no obvious over-excavation phenomenon,the semi-hole trace is clear,and the continuity is good,and the semi-hole rate reaches about 85%,reaching the predetermined goal.关键词
预裂爆破/数值模拟/参数设计/成缝效果/边坡成型Key words
pre splitting blasting/numerical simulation/parameter design/seam forming effect/slope forming分类
矿业与冶金引用本文复制引用
钱明渊,程路,袁政委,崔子恒,鲁海生,姚昌盛..神山石灰岩矿边坡预裂爆破数值模拟及应用[J].露天采矿技术,2024,39(1):57-60,4.
