【摘要】 将爆炸衬砌简化为轴对称问题。应用 DYNA- 2 D有限元程序 ,对爆炸衬砌过程中砂浆、土壤的位移随时间的变化规律进行了数值模拟研究。数值模拟结果与现场试验结果吻合较好。研究表明 ,爆炸衬砌可以使砂浆和土壤形成稳定的衬砌结构 ,自由面是影响砌体形状的一个重要因素。更多还原

【Abstract】 Explosive lining is simplified as an axisymmetric problem. Using DYNA 2D commercial program, the change of displacements of mortar and soil with time during the explosive lining are analyzed by numerical simulation. The numerical simulation results meet the on site experiment results. Research indicates that mortar and soil could be pressured into a stable lining structure through explosive lining. Free face is one of the important factors influencing shape of the lining shell.更多还原