蒙库露天铁矿爆破漏斗试验及其应用研究

Mengku open iron ore blasting crater test and its application

基于在蒙库露天铁矿开采平台和剥离平台上进行的一系列爆破漏斗试验(单孔集中药包爆破漏斗、变孔距同段爆破漏斗和连续柱状炸药斜面台阶爆破漏斗)结果,得到最佳深度比、炸药单耗、孔间距、孔排距.依据利文斯顿弹性应变方程,求出矿岩中深孔生产爆破参数及靠帮光面爆破参数.爆破参数工业试验表明,矿岩中深孔生产爆破质量明显得到改善,靠帮光面爆破在控制边坡外形和降低岩体损伤方面符合规定质量要求.

Based on a series of blasting crater test results on Mengku iron ore mining platform and stripping platform（single hole blasting crater concentrake kits,variable pitch with blasting explosives funnel and continuous incline bence blasting cylindrical funnel）,the optimal depth ratio,explosive consumption,hole spacting and hole rows are obtained.According to the livingston elastic strain equation,the deep-hole of ore blasting parameters and rock of siding-slope smooth blasting parameters are sloved.Industrial tests on the blasting parameters show that the deep hole blasting qulity is significantly improved;smoth blasting in controlling the apperance of rock slope and reducing damage of rock is fitted with the quality requirements.