Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide
文献类型：期刊论文
| 作者 | Xu, Xiaorong1,2; Jin, Feng1; Sun, Qicheng1; Soga, Kenichi2; Zhou, Gordon G. D.3
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| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
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| 出版日期 | 2019-09-01 |
| 卷号 | 56期号:9页码:1318-1337 |
| 关键词 | landslide material point method ArcGIS rheological relation |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2017-0638 |
| 通讯作者 | Sun, Qicheng(qcsun@mail.tsinghua.edu.cn) ; Soga, Kenichi(soga@berkeley.edu) |
| 英文摘要 | This 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). |
| WOS关键词 | SMOOTHED PARTICLE HYDRODYNAMICS ; LARGE-DEFORMATION ; EARTHQUAKE ; CHINA ; FAILURE ; SLOPE ; SPH ; SIMULATIONS ; MECHANISMS ; AVALANCHE |
| 资助项目 | China 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研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000484192300009 |
| 出版者 | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| 资助机构 | China 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 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/26957]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Sun, Qicheng; Soga, Kenichi |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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