金矿中深孔爆破参数数值模拟研究  

Numerical simulation of medium length hole blasting parameters in gold mine

作　　者：贾彦州 JIA Yan-zhou(Shandong Yantai Xintai Gold Mining Co.,Ltd.,Yantai 265147,China)

机构地区：[1]山东烟台鑫泰黄金矿业有限责任公司,山东烟台265147

出　　处：《世界有色金属》2021年第18期194-195,共2页World Nonferrous Metals

摘　　要：在矿山开采中岩石的爆破破碎过程是一个庞大而复杂的系统工程,而孔底距和最小抵抗线是爆破设计中的两个重要参数。本文将某金矿1号试验采场为实验对象,利用ANSYS/LS—DYNA数值模拟软件,对扇形炮孔爆破过程进行数值模拟,计算爆破仿真中有效应力峰值与岩石的动态抗拉强度进行分析,通过对比分析得出适合该金矿中深孔爆破的参数。The process of rock fragmentation by blasting in mining is a huge and complex systems engineering,and the distance between the hole bottom and the minimum resistance line are two important parameters in blasting design.In this paper,the No.1 Test Stope of a gold mine is taken as the main research object,and the blasting process of fan-shaped hole is simulated by using ANSYS/ls-dyna numerical simulation software,the effective stress peak value and dynamic tensile strength of rock in blasting simulation are analyzed,and the suitable parameters for deep-hole blasting in this gold mine are obtained through comparative analysis.

关 键 词：金矿 扇形炮孔 爆破实验 参数模拟 

分 类 号：TD235.33[矿业工程—矿井建设]