江西金龙公司露天采场高边坡预裂爆破参数优化  

Optimization of High Slope Pre-splitting Blasting Parameter for Open Pit of Jiangxi Jinlong Company

作　　者：焦永斌[1] 彭敏杰[1] 高赛红[1] 陆哲祥[1] 

机构地区：[1]江西理工大学,江西赣州341000

出　　处：《有色金属》2007年第2期79-82,共4页Nonferrous Metals

摘　　要：研究在江西金龙公司露天矿裂隙发育的最终边坡上预裂爆破的参数优化。结果表明,预裂孔孔径100mm,孔深20m左右,孔间距1.0m,平均线装药密度0.445kg/m时,半孔率仍可达60%左右。预裂孔前的缓冲孔孔间距1.5m,预裂孔与缓冲孔间距1.3m,取得理想的爆破效果。The pre-splitting demolition parameter optimization in the final slope with the crevasse growth of Jiangxi Jinlong Corporation Strip Mine is investigated. The results show that while the pre-hiatus aperture 100mm, depth of hole about 20m, pitch of holes 1.0m and average line charge density 0.445kg/m, the half porosity is still attainable about 60 %. The ideal blasting effect is achieved with the pre-hiatus cushion pitch of holes 1.5m and the pre-hiatus and cushion pitch of holes 1.3m.

关 键 词：采矿工程 高边坡 预裂爆破 参数优化 钻孔质量 

分 类 号：TD854.2[矿业工程—金属矿开采]