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A two-layer model for simulating landslide dam over mobile river beds
Liu, Wei1,2; He, Siming1,2,3
Corresponding AuthorSiming He
2016
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume13Issue:3Pages:565-576
SubtypeArticle
AbstractLandslides can block mountainous streams and form landslide dams to threaten downstream residents. It is necessary for reliable methods to predict landslide dam dynamic for risk assessment. In this paper, we present a two-layer model of Savage-Hutter type to simulate the dynamic evolution of landslide dam which take account of the erosion of river bed. The two-layer shallow water system is derived by depth-averaging the incompressible Navier-Stokes equations with the hydrostatic assumption integrated of the erosion model of river bed. The effect of excess pore water pressure is considered in the erosion process. A high order accuracy scheme based on Roe-type solver is used to discretize the present model. Finally, several numerical tests are performed to verify the stability of the algorithm and reliability of the model. Numerical results indicate that the erosion effect enhances the huge destructiveness of landslide and increase the possibility of river blocked by landslides. The impact of excess pore water pressure on erosion process should be considered.
KeywordTwo-layer Model Landslide Dam Erosion Excess Pore-water Pressure Roe-type Scheme
Subject Area流体力学 ; 多相流体力学
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10346-015-0585-2
URL查看原文
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordSHALLOW-WATER EQUATIONS ; CATASTROPHIC LANDSLIDES ; NUMERICAL-SOLUTION ; GRANULAR MASSES ; DEBRIS FLOWS ; AVALANCHES ; TOPOGRAPHY ; FAILURE ; SOLVERS ; MOTION
Language英语
Quartile2区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000376618300010
Funding OrganizationNational Natural Science Foundation of China(41272346) ; National Key Basic Research Program of China(2013CB733201) ; Chinese Academy of Sciences(KFJ-EW-STS-094)
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10955
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm IMHE, 9,Block 4,Renminnanlu Rd, Chengdu, 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
Liu, Wei,He, Siming. A two-layer model for simulating landslide dam over mobile river beds[J]. LANDSLIDES,2016,13(3):565-576.
APA Liu, Wei,&He, Siming.(2016).A two-layer model for simulating landslide dam over mobile river beds.LANDSLIDES,13(3),565-576.
MLA Liu, Wei,et al."A two-layer model for simulating landslide dam over mobile river beds".LANDSLIDES 13.3(2016):565-576.
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