Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide

doi:10.1139/cgj-2017-0638

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Three-dimensional material point method modeling of runout behavior of the Hongshiyan landslide
	Xu, Xiaorong 1,2; Jin, Feng 1; Sun, Qicheng 1; Soga, Kenichi 2; Zhou, Gordon G. D.3
刊名	CANADIAN GEOTECHNICAL JOURNAL
	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).
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关键词	SMOOTHED PARTICLE HYDRODYNAMICS ; LARGE-DEFORMATION ; EARTHQUAKE ; CHINA ; FAILURE ; SLOPE ; SPH ; SIMULATIONS ; MECHANISMS ; AVALANCHE
WOS研究方向	Engineering ; Geology
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:000484192300009
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
内容类型	期刊论文
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.