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  4. 中国科学院页岩气与地质工程重点实验室
Numerical investigation of river blocking process of Gangda paleolandslide at the upstream reaches of the Jinsha River, Tibentan Plateau

文献类型：期刊论文

作者Bao, Yiding1,7; Zhang, Yansong7; Chen, Jianping7; Su, Lijun1,2,6; Li, Yongchao3,7; Li, Yuchao7; Zhang, Xudong4,7; Liu, Yaowu5,7
刊名LANDSLIDES
出版日期2023-05-25
页码18
ISSN号1612-510X
关键词Landslide blocking river Numerical simulation Fluid-solid coupling Dynamic process
DOI10.1007/s10346-023-02078-8
英文摘要In this paper, the authors investigated the dynamic process of a high-level paleolandslide blocking river event-Gangda landslide blocking river event in the deep valley area. An integrated fluid-solid coupling method based on the FDEM-SPH was proposed to study it. In the numerical model, the dynamic process of the landslide is described by FDEM, while SPH describes the behavior of the river water. Based on the back-analysis of the three-dimension modeling, the landslide blocking river simulation results of the FDEM-SPH agree well with the field investigation and PFC3D simulation results. Simulation results of the FDEM-SPH show that the primary process of the Gangda paleolandslide blocking river lasted for 60 s. The maximum overall feature speed of the sliding mass was 33 m/s, while the speed of the sliding mass tip reached a maximum value of 40 m/s. Dynamic fragmentation of the landslide was violent, and both the open mode and sliding mode damage play essential roles in dynamic fragmentation. The variation of kinetic energy, accumulated friction dissipation, and fracture energy of the sliding mass are also shown. The landslide induced an impulse wave after merging into the river, and the wave behavior was further affected by the sliding mass movement. The maximum overall feature speed of the wave was 17 m/s, and the speed of the wave tip reached a maximum value of 33 m/s with a maximum run-up height of 120 m. Finally, a comparison of the FDEM-SPH model and PFC model in the application of landslide blocking river is discussed, and the advantages and limitations of the FDEM-SPH model are examined.
WOS关键词IMPULSIVE WAVES ; MODEL ; FAILURE ; SIMULATION ; SUBMARINE ; MECHANISM ; INSIGHTS
资助项目National Natural Science Foundation of China[42207229] ; National Natural Science Foundation of China[U22A20603] ; fellowship of China Postdoctoral Science Foundation[2020M683369] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20030301] ; IMHE Youth ST Foundation[SDS-QN-2107]
WOS研究方向Engineering ; Geology
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000994725600001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; IMHE Youth ST Foundation ; IMHE Youth ST Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; IMHE Youth ST Foundation ; IMHE Youth ST Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; IMHE Youth ST Foundation ; IMHE Youth ST Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; IMHE Youth ST Foundation ; IMHE Youth ST Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/110947]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Su, Lijun
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn KLSGG, Beijing 100029, Peoples R China
4.Shanghai Univ, Dept Civil Engn, Shanghai 200444, Peoples R China
5.China Renewable Energy Engn Inst, Beijing 100120, Peoples R China
6.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan
7.Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China
推荐引用方式
GB/T 7714		 Bao, Yiding,Zhang, Yansong,Chen, Jianping,et al. Numerical investigation of river blocking process of Gangda paleolandslide at the upstream reaches of the Jinsha River, Tibentan Plateau[J]. LANDSLIDES,2023:18.
APA Bao, Yiding.,Zhang, Yansong.,Chen, Jianping.,Su, Lijun.,Li, Yongchao.,...&Liu, Yaowu.(2023).Numerical investigation of river blocking process of Gangda paleolandslide at the upstream reaches of the Jinsha River, Tibentan Plateau.LANDSLIDES,18.
MLA Bao, Yiding,et al."Numerical investigation of river blocking process of Gangda paleolandslide at the upstream reaches of the Jinsha River, Tibentan Plateau".LANDSLIDES (2023):18.

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来源：地质与地球物理研究所

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