A TPDP-MPM-based approach to understanding the evolution mechanism of landslide-induced disaster chain
文献类型：期刊论文
| 作者 | Du, Wenjie; Sheng, Qian; Fu, Xiaodong; Chen, Jian; Zhou, Yongqiang |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 14期号:4页码:1200 |
| ISSN号 | 1674-7755 |
| 关键词 | Disaster chain Landslide-induced surge Material point method (MPM) Energy evolution U-shaped valley |
| 英文摘要 | With complex topographic and hydrological characteristics, the landslide-induced surge disaster chain readily develops in mountainous and gorge areas, posing a huge challenge for infrastructure construction. This landslide-induced surge disaster chain involves a complex fluid-solid coupling between the landslide mass and a water body and exhibits complex energy conversion and dissipation characteristics, which is challenging to deal with using traditional finite element analysis. In this study, the energy evolution characteristics in the whole process of the disaster chain were first investigated, and the momentum-conservation equations for different stages were established. Then, the two-phase double-point material point method (TPDP-MPM) was used to model the landslide-induced surge disaster chain, and an experiment involving block-induced surge was modeled and simulated to validate this method. Finally, three generalized models were established for the landslide-induced surge process in a U-shaped valley, including subaerial, partly submerged, and submarine scenarios. The interaction mechanism between the landslide mass and the water body in the disaster chain was revealed by defining the system energy conversion ratio and the mechanism of evolution of the disaster chain from the perspective of energy. The results help further evaluate the secondary disasters, given the submerged position of the landslide mass. (C) 2022 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000838465100016 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35019]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; |
| 推荐引用方式 GB/T 7714 | Du, Wenjie,Sheng, Qian,Fu, Xiaodong,et al. A TPDP-MPM-based approach to understanding the evolution mechanism of landslide-induced disaster chain[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2022,14(4):1200. |
| APA | Du, Wenjie,Sheng, Qian,Fu, Xiaodong,Chen, Jian,&Zhou, Yongqiang.(2022).A TPDP-MPM-based approach to understanding the evolution mechanism of landslide-induced disaster chain.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,14(4),1200. |
| MLA | Du, Wenjie,et al."A TPDP-MPM-based approach to understanding the evolution mechanism of landslide-induced disaster chain".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 14.4(2022):1200. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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