基于LS-PrePost在优选爆破方案中数值模拟评价分析  

Numerical Simulation Evaluation and Analysis in Optimal Blasting Scheme Based on LS-PrePost

作　　者：段军[1] 焦登铭 张鹏飞[1] 王梦瑶 DUAN Jun;JIAO Deng-ming;ZHANG Peng-fei;WANG Meng-yao(Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学,内蒙古包头014010

出　　处：《煤炭技术》2020年第5期86-88,共3页Coal Technology

摘　　要：应用统计分析法对某矿山爆破方案进行可靠性研究,并建立一个网络模型优选出爆破方案,最后运用LS-PrePost有限元分析软件对最优方案进行静力学分析,模拟炮孔间岩石在给定静载荷作用下在水平方向上的应力分布状况,并对优选爆破方案进行评价。研究得出:方案1中孔间距为0.7 m,达到岩石屈服应力作用时间长,并且炸药爆炸的能量分布得均匀,同时延伸了爆炸轰波作用。Applying statistical analysis method to study the reliability of a mine blasting scheme,and establish a network model to optimize the blasting scheme.Finally,LS-PrePost finite element analysis software is used to analyze the static solution of the optimal scheme,and the rock between the blastholes is given.The stress distribution in the horizontal direction under static load and the evaluation of the preferred blasting scheme.The study shows that the hole spacing in scheme 1 is 0.7 m,the rock yield stress is long,and the energy distribution of the explosive explosion is even,and the explosion bombardment is extended.

关 键 词：统计分析 爆破方案 网络模型 LS-PrePost 静力学分析 

分 类 号：TD235[矿业工程—矿井建设]