IMHE OpenIR  > 山地灾害与地表过程重点实验室
Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide
Xu, Xiaorong1,2; Jin, Feng1; Sun, Qicheng1; Soga, Kenichi2; Zhou, Gordon G. D.3
Corresponding AuthorSun, Qicheng(qcsun@mail.tsinghua.edu.cn) ; Soga, Kenichi(soga@berkeley.edu)
2019-09-01
Source PublicationCANADIAN GEOTECHNICAL JOURNAL
ISSN0008-3674
Volume56Issue:9Pages:1318-1337
AbstractThis study presents a field-scale simulation of the Hongshiyan landslide in China. It uses an advanced numerical approach (material point method (MPM)) and a constitutive model (the Drucker-Prager model + mu(I) rheological relation) for the three-dimensional (3D) simulation. The performance of the developed MPM model is validated with laboratory-scale experimental data on granular collapse before being applied to field-scale analyses. ArcGIS data are used to create a 3D MPM model of the soil body with complicated geometry. Although the developed model can describe the multiple phases of granular flow, it focuses on the runout behavior of the landslide in this work. The landslide is assumed to have occurred suddenly due to an earthquake, and global sudden failure rather than progressive failure is modeled. The MPM simulation results match reasonably well with the measured post-earthquake topography (e.g., deposit height of about 120 m and stretch length of about 900 m in the river) and landslide duration of about 1 min. The velocity of the sliding mass increases rapidly during flow, especially in the first 20 s. The velocity profiles along the depth direction at different locations of the sliding body exhibit an exponential distribution similar to that of a Bagnold-type profile, indicating that the sliding body is fully mobilized. The rate-dependent dissipation parameter beta used in the model significantly influences the runout behavior (e.g., flow speed, velocity distribution, and deposit shape).
Keywordlandslide material point method ArcGIS rheological relation
DOI10.1139/cgj-2017-0638
Indexed BySCI
WOS KeywordSMOOTHED PARTICLE HYDRODYNAMICS ; LARGE-DEFORMATION ; EARTHQUAKE ; CHINA ; FAILURE ; SLOPE ; SPH ; SIMULATIONS ; MECHANISMS ; AVALANCHE
Language英语
Funding ProjectChina Scholarship Council ; National Natural Science Foundation of China[11572178] ; National Natural Science Foundation of China[11672318] ; National Natural Science Foundation of China[51639006] ; Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000484192300009
Funding OrganizationChina Scholarship Council ; National Natural Science Foundation of China ; Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences
PublisherCANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26957
Collection山地灾害与地表过程重点实验室
Corresponding AuthorSun, Qicheng; Soga, Kenichi
Affiliation1.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
2.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Xu, Xiaorong,Jin, Feng,Sun, Qicheng,et al. Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide[J]. CANADIAN GEOTECHNICAL JOURNAL,2019,56(9):1318-1337.
APA Xu, Xiaorong,Jin, Feng,Sun, Qicheng,Soga, Kenichi,&Zhou, Gordon G. D..(2019).Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide.CANADIAN GEOTECHNICAL JOURNAL,56(9),1318-1337.
MLA Xu, Xiaorong,et al."Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide".CANADIAN GEOTECHNICAL JOURNAL 56.9(2019):1318-1337.
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