爆破损伤范围数值模拟分析  

Numerical simulation analysis of blasting damage range

作　　者：张袁娟[1] 王公忠[1] 王幸荣 王凤凰 

机构地区：[1]河南工程学院安全工程学院,河南郑州451191 [2]湖北宜化集团矿业有限责任公司,湖北宜昌443000

出　　处：《化工矿物与加工》2013年第4期31-33,共3页Industrial Minerals & Processing

基　　金：河南省教育厅自然科学研究项目(12B440001)

摘　　要：为了研究炮孔附近爆破损伤范围,结合具体工况引入爆破损伤因子,基于JHC本构模型,运用LS-DYNA显式非线性动力分析有限元程序分别建立单孔直径140mm、250mm和直径140mm、250mm双孔微差爆破的准平面应变有限元模型,并得出相应的爆破损伤范围,为生产爆破设置合理爆破孔网参数提供了理论依据。In order to study the blasting damage range in the vicinity of boreholes and based on the JHC constitutive model, blasting damage factor is introduced according to the concrete op- erating conditions, using LS-DYNA finite element program with explicit nonlinear dynamical analysis respectively to establish plane strain models of single borehole with diameter of 140ram and 250mm, and millisecond blasting of double holes with diame- ter 140ram and 250ram. And the corresponding blasting damage range is obtained to provide a theoretical basis for setting the rea- sonable parameters for the blasting borehole pattern.

关 键 词：爆破参数 损伤因子 LS-DYNA 数值模拟 

分 类 号：TD235.4[矿业工程—矿井建设]