Influence of explosion distance on the dynamic mechanical response of underground fortification
文献类型:会议论文
作者 | Lin,Q D1; Feng C(冯春)2![]() |
出版日期 | 2023-06-01 |
会议日期 | 2022-08-23 |
会议地点 | Changsha, China |
卷号 | 2478 |
期号 | 7 |
DOI | 10.1088/1742-6596/2478/7/072017 |
英文摘要 | Abstract Many key military targets have been moved underground to improve the battlefield survivability. To study the influence of explosion distance on the dynamic mechanical response of underground fortification, the full-time numerical simulation is conducted based on the CDEM numerical method. First, four numerical simulations corresponding to different explosion distances are conducted. Then, the displacement characteristic of underground fortification and rock mass is analyzed. Finally, the fracture characteristic of underground fortification and rock mass is analyzed. The numerical results show that the damage degree of underground fortification and rock mass weakens with the increase of explosion distance. When the distance increases from 5 m to 20 m, the volume of rock entering the underground fortification decreases from 24.78 m3 to 0 m3. The time-history curve of crack ratio has the four-stage characteristic, and it increases rapidly during the explosion initiation process. As the explosion distance increases, the top concrete wall mainly undergoes tensile fracture. |
会议录 | Journal of Physics: Conference Series
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语种 | 英语 |
ISSN号 | 1742-6588 |
WOS记录号 | IOP:JPCS_2478_7_072017 |
源URL | [http://dspace.imech.ac.cn/handle/311007/92445] ![]() |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
作者单位 | 1.Xi’an Modern Chemistry Research Institute, Xi’an, Shaanxi, 710065, China 2.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
推荐引用方式 GB/T 7714 | Lin,Q D,Feng C,Gan,Y D,et al. Influence of explosion distance on the dynamic mechanical response of underground fortification[C]. 见:. Changsha, China. 2022-08-23. |
入库方式: OAI收割
来源:力学研究所
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