Extensions of the two-phase double-point material point method to simulate the landslide-induced surge process

doi:10.1016/j.enganabound.2021.09.020

	Extensions of the two-phase double-point material point method to simulate the landslide-induced surge process
	Du, Wenjie 2,3; Sheng, Qian 2,3; Fu, Xiaodong 2,3; Chen, Jian 1,2,3; Zhou, Yongqiang 2,3
刊名	ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
	2021-12-01
卷号	133 页码:362-375
关键词	Landslide Material point method (MPM) Landslide-induced surge Fluid-solid coupling OpenMP
ISSN号	0955-7997
DOI	10.1016/j.enganabound.2021.09.020
英文摘要	Landslide-induced surges, as a complex type of fluid-solid coupling problem, are widespread in mountain regions and cause disastrous consequences. In order to reproduce the entire process of landslide-induced surge, by taking full advantage of material point method (MPM) in simulating large deformation of soil and gravity-driven flow of water, the two-phase double-point material point method (TPDP-MPM) was extended: a new algorithm handling the boundary without setting boundary particles was proposed. The classical submarine block-induced surge test and sand column collapse experiment were numerically simulated by the MPM and verified the effectiveness of the program. After that, the multiphase coupling process of Lituya Bay landslide-induced surge was simulated and verified the reliability of the TPDP-MPM code, which have achieved parallel computing by making use of OpenMP model. By comparing the results of numerical simulation with the model experiment, the two-phase double-point material point method can well simulate the starting, propagation, run-up and reflux stage of landslide-induced surge. Moreover, the extension mechanism of landslide-surge disaster chain in both time and space is revealed from the perspective of energy. This study provides a reliable tool for the analysis and assessment of landslide-induced surge disasters.
资助项目	Youth Innovation Promotion Association CAS[2021325] ; International Partnership Program of Chinese Academy of Sciences[131551KYSB20180042] ; National Natural Science Foundation of China[51779250] ; National Natural Science Foundation of China[52179117]
WOS研究方向	Engineering ; Mathematics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000708579400004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28492]
专题	中科院武汉岩土力学所
通讯作者	Fu, Xiaodong
作者单位	1.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Du, Wenjie,Sheng, Qian,Fu, Xiaodong,et al. Extensions of the two-phase double-point material point method to simulate the landslide-induced surge process[J]. ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,2021,133:362-375.
APA	Du, Wenjie,Sheng, Qian,Fu, Xiaodong,Chen, Jian,&Zhou, Yongqiang.(2021).Extensions of the two-phase double-point material point method to simulate the landslide-induced surge process.ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,133,362-375.
MLA	Du, Wenjie,et al."Extensions of the two-phase double-point material point method to simulate the landslide-induced surge process".ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS 133(2021):362-375.