IMHE OpenIR  > 山地灾害与地表过程重点实验室
A new theoretical method for analyzing confined dry granular flows
Zhou, Gordon G. D.1,2,3; Ng, Charles W. W.4; Sun, Q. C.5
Corresponding Author周公旦
2014
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume11Issue:3Pages:369-384
SubtypeArticle
AbstractA granular body may deform in a continuous fashion such that the solid particles remain in close contact. Previous research works have always used the frictional Coulomb-like continuum treatment for analyzing granular bodies. However, this approach is only applicable for quasi-static conditions and cannot capture the complicated granular contact behavior of solid particles inside a failing granular body. This paper applies a revised Savage-Hutter equation to model granular flows moving down a confined, sloping channel. The Coulomb contact friction law is modified to consider the effect of the shear rate inside a granular body. This new method also considers the confinement effect of a sloping channel on granular flow mobility. The derived depth-averaged equations of motion bear a resemblance to nonlinear shallow-water wave equations. Results computed using the derived equations are compared with measurements from flume model tests, and consistency is found between the two.
KeywordTheoretical Solution Confined Granular Flow Modified Savage-hutter Model Contact Friction Law
Subject Area灾害学
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10346-013-0397-1
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordDEBRIS FLOWS ; 3-DIMENSIONAL TERRAIN ; INCLINED PLANE ; AVALANCHES ; RUNOUT ; MOTION ; MODEL ; SEGREGATION ; LANDSLIDES ; TOPOGRAPHY
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000337061000004
Funding OrganizationNational Natural Science Foundation of China(41201012) ; Key Research Program of the Chinese Academy of Sciences(KZZD-EW-05-01) ; Research Project of the Ministry of Transport of P. R. China(201231879210) ; Hundred Young Talents Program of the Institute of Mountain Hazards and Environment
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6543
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China
3.Minist Water Conservancy & Power, Chengdu, Peoples R China
4.Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
5.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, 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
Zhou, Gordon G. D.,Ng, Charles W. W.,Sun, Q. C.. A new theoretical method for analyzing confined dry granular flows[J]. LANDSLIDES,2014,11(3):369-384.
APA Zhou, Gordon G. D.,Ng, Charles W. W.,&Sun, Q. C..(2014).A new theoretical method for analyzing confined dry granular flows.LANDSLIDES,11(3),369-384.
MLA Zhou, Gordon G. D.,et al."A new theoretical method for analyzing confined dry granular flows".LANDSLIDES 11.3(2014):369-384.
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