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| 爆炸作用下坑道被覆结构局部破坏效应数值分析 | |
| 引用本文： | 邓春梅,许金余,沈刘军.爆炸作用下坑道被覆结构局部破坏效应数值分析[J].弹箭与制导学报,2009,29(1). |
| 作者姓名： | 邓春梅 许金余 沈刘军 |
| 作者单位： | 1. 空军工程大学工程学院,西安,710038;空军工程设计研究局,北京,100086 2. 空军工程大学工程学院,西安,710038;西北工业大学,西安,710072 3. 空军工程大学工程学院,西安,710038 |
| 基金项目： | 空军工程大学工程学院“优秀博士学位论文创新基金”(BC0510)资助 |
| 摘 要： | 文中利用LS-DYNA程序研究了坑道被覆结构在常规装药爆炸作用下的局部破坏效应。通过数值模拟可直观了解爆炸冲击波在被覆结构中的传播及与周围围岩的相互作用和分析被覆结构的受力特点。计算结果表明在爆炸应力波作用下混凝土被覆结构在反射拉伸波的作用下产生局部震塌破坏。 |
| 关 键 词： | 爆炸冲击波 坑道被覆结构 局部破坏效应 数值模拟 震塌 |
Numerical Simulation of Tunnel Lining's Local Damage Effect Subjected to Subsurface Blast |
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| DENG Chunmei,XU Jinyu,SHEN Liujun.Numerical Simulation of Tunnel Lining''s Local Damage Effect Subjected to Subsurface Blast[J].Journal of Projectiles Rockets Missiles and Guidance,2009,29(1). | |
| Authors: | DENG Chunmei XU Jinyu SHEN Liujun |
| Affiliation: | 1 The Engineering Institute;Air Force Engineering University;Xi'an 710038;China;2 Air Force Engineering Design & Research Bureau;Beijing 100086;3 Northwestern Polytechnical University;Xi'an 710072;China |
| Abstract: | LS-DYNA is employed to research the local damage effect of tunnel lining subjected to conventional subsurface blast.The propagation of the explosion wave and the mutual action between the mass rock and tunnel lining are better understood through the numerical simulation.The damage characteristics of reinforced concrete lining under explosive load are analyzed.The result showed that the spalling failure of the reinforced concrete lining is generated under the reflected extensive wave. |
| Keywords: | explosion shock wave tunnel lining local damage effect numerical simulation spalling |
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