单自由面无限岩体中深孔微差爆破数值模拟  

Numerical Simulation on Medium Long-hole Millisecond Blasting in Infinite Rock Mass with Single Free Face

作　　者：杨才亮[1] 

机构地区：[1]中国水利水电第七工程局有限公司,四川成都610031

出　　处：《矿业研究与开发》2010年第4期93-96,共4页Mining Research and Development

摘　　要：采用大型动力有限元程序ANSYS/LS-DYNA及ALE算法,对单自由面无限岩体中深孔微差爆破进行了数值模拟。结果表明,数值模拟能进行爆破有效应力的时程分析、爆破应力波传播的直观演示、客观反映爆破破岩的动态过程等,模拟结果可为爆破设计提供参考。The numerical simulation of medium long-hole millisecond blasting in infinite rock mass with single free face was carried out by using FEM program of ANSYS /LS-DYNA and ALE algorithm.The analysis result indicated that simulation can be used to demonstrate the time-history of effective stress in blasting,the propagation of blasting stress wave and the dynamic process of rock blasting fragmentation,simulated results can provide reference for blasting design.

关 键 词：深孔微差爆破 数值模拟 有限元 状态方程 ANSYS/LS-DYNA 

分 类 号：TD235.33[矿业工程—矿井建设]