多孔同段爆破漏斗形成机理的数值模拟研究  

Numerical simulation of formation mechanism of multi hole and same delay time of blasting crater

作　　者：王鹏[1] 周传波[1] 耿雪峰[1] 贾建红[1] 

机构地区：[1]中国地质大学(武汉)岩土钻掘与防护教育部工程研究中心,武汉430074

出　　处：《岩土力学》2010年第3期993-997,共5页Rock and Soil Mechanics

摘　　要：采用ANSYS/LS-DYNA非线性三维动力有限元软件,对岩石在多孔同段爆破作用下的应力分布与传播机制,进行了数值模拟。得到了不同时刻的应力分布云图和典型单元的应力-时间历程曲线,根据结果分析研究了应力波传播规律与爆破漏斗的形成过程,探讨了影响爆破漏斗形成的相关因素,并通过现场试验加以验证,试验结果与数值模拟结果相吻合。By using ANSYS/LS-DYNA, 3D nonlinear dynamic finite element software, an elasticity calculation model is established to analyze the distribution and transmission of stress under explosive charge in multi hole and the same delay time; the stress distribution nephogram and stress-time curves of some typical elements of the mode in different times are obtained. The transmission of stress waves and the formation of blasting crater are shown. The factors influenced the formation of blasting crater arc discussed. The research results of numerical simulation have been proved by field productive application.

关 键 词：多孔同段 爆破漏斗 数值模拟 

分 类 号：O242[理学—计算数学]