IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.2
Characteristics of viscous debris flow in a drainage channel with an energy dissipation structure
Chen Jian-gang1; Chen Xiao-qing1,2; Chen Hua-yong1; Zhao Wan-yu1
Corresponding AuthorCHEN Jian-gang
2016
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume13Issue:2Pages:223-233
SubtypeArticle
AbstractA new type of drainage channel with an energy dissipation structure has been proposed based on previous engineering experiences and practical requirements for hazard mitigation in earthquakeaffected areas. Experimental studies were performed to determine the characteristics of viscous debris flow in a drainage channel of this type with a slope of 15%. The velocity and depth of the viscous debris flow were measured, processed, and subsequently used to characterize the viscous debris flow in the drainage channel. Observations of this experiment showed that the surface of the viscous debris flow in a smooth drainage channel was smoother than that of a similar debris flow passing through the energy dissipation section in a channel of the new type studied here. However, the flow patterns in the two types of channels were similar at other points. These experimental results show that the depth of the viscous debris flow downstream of the energy dissipation structure increased gradually with the length of the energy dissipation structure. In addition, in the smooth channel, the viscous debris-flow velocity downstream of the energy dissipation structure decreased gradually with the length of the energy dissipation structure. Furthermore, the viscous debris-flow depth and velocity were slightly affected by variations in the width of the energy dissipation structure when the channel slope was 15%. Finally, the energy dissipation ratio increased gradually as the length and width of the energy dissipation structure increased; the maximum energy dissipation ratio observed was 62.9% (where B = 0.6 m and L/w = 6.0).
KeywordDebris Flow Drainage Channel Energy Dissipation Structure Geological Disaster
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-014-3290-z
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordWENCHUAN EARTHQUAKE AREA ; LANDSLIDE DAM FAILURES ; CHI-CHI EARTHQUAKE ; CENTRAL TAIWAN ; CHECK-DAM ; MITIGATION ; TORRENT
Language英语
Quartile4区
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WOS SubjectEnvironmental Sciences
WOS IDWOS:000370161700004
Funding OrganizationKey Deployment Project of Chinese Academy of Sciences(KZZD-EW-05-01) ; National Natural Science Foundation of China(41302283) ; West Light Foundation of Chinese Academy of Sciences
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/14069
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.2
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, CAS Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.CAS, Ctr Excellence Tibetan Plateau Earth Sci, Sydney, NSW, Australia
Recommended Citation
GB/T 7714
Chen Jian-gang,Chen Xiao-qing,Chen Hua-yong,et al. Characteristics of viscous debris flow in a drainage channel with an energy dissipation structure[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(2):223-233.
APA Chen Jian-gang,Chen Xiao-qing,Chen Hua-yong,&Zhao Wan-yu.(2016).Characteristics of viscous debris flow in a drainage channel with an energy dissipation structure.JOURNAL OF MOUNTAIN SCIENCE,13(2),223-233.
MLA Chen Jian-gang,et al."Characteristics of viscous debris flow in a drainage channel with an energy dissipation structure".JOURNAL OF MOUNTAIN SCIENCE 13.2(2016):223-233.
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