IMHE OpenIR  > 山地灾害与地表过程重点实验室
Simulation of two-phase debris flow scouring bridge pier
Liu Wei1; He Si-ming1,2,3
2017
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume14Issue:11Pages:2168-2181
SubtypeArticle
AbstractDebris flows are typical two-phase flows, which commonly accompany erosion in mountainous areas, and may destroy bridge engineering by scouring. In this study, a physically-based two-phase model is applied for the simulation of debris flow scouring of bridge pier. In this model, the shear stress of debris flow on an erodible bed is considered to be a function of the solid shear stress, fluid shear stress, and volume fraction; accordingly, the erosion is incorporated into the two-phase model. Using a highaccuracy computational scheme based on the finite volume method, the model is employed for simulating a dynamic debris flow over an erodible bed. The numerical results are consistent with the experimental data, and verify the feasibility of the two-phase model. Moreover, a simple numerical test is performed to exhibit the fundamental behaviour of debris flow scouring of bridge pier, which shows that the degree of erosion on each side of the pier is higher compared to other areas. The scouring depth is influenced by the variations of solid volume fraction and velocity of debris flow and pier width.
KeywordPier Scouring Debris Flow Two-phase Model Numerical Simulation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-017-4458-0
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordSHALLOW-WATER EQUATIONS ; DAM-BREAK FLOWS ; LOCAL SCOUR ; MODEL ; BEDS ; SURFACE ; FLUID ; ENTRAINMENT ; PROPAGATION ; AVALANCHE
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000415351800003
Funding OrganizationNSFC-ICIMOD(41661144041) ; Key Research and Development Program(2017SZ0041) ; Sichuan Province Science and Technology Support Project(2016SZ0067)
PublisherSCIENCE PRESS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19182
Collection山地灾害与地表过程重点实验室
Journal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.11
Corresponding AuthorHe Si-ming
Affiliation1.Chinese Acad Sci, IMHE, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, 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
Corresponding 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 Si-ming. Simulation of two-phase debris flow scouring bridge pier[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(11):2168-2181.
APA Liu Wei,&He Si-ming.(2017).Simulation of two-phase debris flow scouring bridge pier.JOURNAL OF MOUNTAIN SCIENCE,14(11),2168-2181.
MLA Liu Wei,et al."Simulation of two-phase debris flow scouring bridge pier".JOURNAL OF MOUNTAIN SCIENCE 14.11(2017):2168-2181.
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