岩石中相邻炮孔装药爆破的数值模拟  

Numerical Simulation of Blasting between Adjacent Charge Holes in Rock

作　　者：丁光亚[1] 徐颖[1] 熊楚明[1] 

机构地区：[1]安徽理工大学土木工程系,安徽淮南232001

出　　处：《安徽理工大学学报（自然科学版）》2004年第B05期56-59,共4页Journal of Anhui University of Science and Technology:Natural Science

基　　金：安徽省自然科学基金资助项目(03044501);安徽省教育厅自然科学基金资助项目(2003kj018zd)

摘　　要：采用动力有限元DYNA3D程序中的ArbitraryLagrange-Euler描述法(ALE),对岩石中相邻炮孔水耦合装药爆破应力场随时间的变化情况进行了数值计算,并分析了有效应力和剪应力的相互叠加作用,以深入了解孔间贯通裂隙的形成过程。结果表明,基于工程实践的数值模拟,能较客观地反映爆破破岩的动态过程,有助于为爆破设计提供参考。The change of stress field with time after blasting adjacent water-coupling charge holes in rock is simulated by using Arbitrary Lagrangian-Euler(ALE) method in dynamic finite element DYNA3D, and the super position interaction of effective stress and shear stress is analyzed, so as to understand further forming process of connected fissures between boreholes. The results show that the numerical simulation based on the engineering practice can be better in revealing the dynamic course of fragmental rock and help us in blasting design.

关 键 词：应力 材料模型 数值模拟 

分 类 号：TD231.1[矿业工程—矿井建设]