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Application of the material point method to simulate the post-failure runout processes of the Wangjiayan landslide
Li, Xinpo1,2; Wu, Yong1,2; He, Siming1,2,3; Su, Lijun1,2,3
Corresponding AuthorLi, Xinpo
2016
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
EISSN1872-6917
Volume212Pages:1-9
SubtypeArticle
AbstractThe first part of the paper presents a brief description of the material point method (MPM) including the governing equations, solution scheme and a benchmark problem of soil collapse simulated using the method. In the second and third part of the paper, the post-failure runout process of the Wangjiayan landslide is simulated and analyzed. The landslide's final topography and information from post-failure in-situ survey and laboratory tests are used to constrain the accuracy of computational results. The kinematic behaviors of the failure mass are investigated in terms of displacement, velocity, effective plastic strain fields and topography changes during the movement. Comparisons are made between conditions with and without buildings on the deposition area. Numerical computations demonstrate that the presence of buildings on the sliding path strongly governs the flow regime, run-out distance, velocity, strain field and final deposition topography of the landslide. So it is very essential, to incorporate the effects of buildings in the modelling and analyses. Numerical results considering buildings show that the slide lasts about 30 s with the most rapid phase occurring between 6 and 12 s, and that the maximum simulated velocity among the sliding particles in the landslide is 43.5.m/s, indicates that the moving of the landslide mass was very fast. The run-out distance simulated with MPM matches the measured post earthquake topography well, whereas the shape of the simulated deposition zone is a little differs. The buildings influence the sliding by shortening the overall run-out distance, decelerating the movement of the bottom layer, and increasing the internal deformation and mixing among deposition layers. (C) 2016 Elsevier B.V. All rights reserved.
KeywordMaterial Point Method Run-out Analysis Landslide Deposition Kinematics Effects Of Buildings
Subject Area地球科学 ; 工程地质学
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.enggeo.2016.07.014
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS Keyword2008 WENCHUAN EARTHQUAKE ; SMOOTHED PARTICLE HYDRODYNAMICS ; TSAOLING LANDSLIDE ; GRANULAR-MATERIALS ; FLOW ; DEFORMATION ; MODEL ; SICHUAN ; CHINA ; MASS
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000385600200001
Funding OrganizationNational Key Basic Research Program of China(2013CB733201) ; "hundred talents" program of CAS ; National Natural Science Foundation of China(41472293 ; 91430105 ; 41401004 ; 41301587)
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17738
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Chengdu, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Xinpo,Wu, Yong,He, Siming,et al. Application of the material point method to simulate the post-failure runout processes of the Wangjiayan landslide[J]. ENGINEERING GEOLOGY,2016,212:1-9.
APA Li, Xinpo,Wu, Yong,He, Siming,&Su, Lijun.(2016).Application of the material point method to simulate the post-failure runout processes of the Wangjiayan landslide.ENGINEERING GEOLOGY,212,1-9.
MLA Li, Xinpo,et al."Application of the material point method to simulate the post-failure runout processes of the Wangjiayan landslide".ENGINEERING GEOLOGY 212(2016):1-9.
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