IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.2
Calculation of the ultimate depth of a scour pit after debris flow through drainage canal ribs
Liu Shu-liang1,2,3; You Yong1,2; Zhang Guang-ze4; Wang Dong4; Zhao Hai-xin1,2,3; Sun Hao1,2,3
Corresponding AuthorYOU Yong
2016
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume13Issue:2Pages:246-254
SubtypeArticle
AbstractDrainage canals are engineering structures widely used for debris flow mitigation. When passing through a drainage canal, debris flow usually scours the gully bed at the back of the rib sill of the drainage canal, which leads to failure of the rib sill. Therefore, the scour depth at the back of the rib sill is an important design problem and it is related to the economic benefits of engineering and service years. To explore the law of the depth of the scour pit after debris flow through drainage canal ribs, we first proposed a formula for the calculation of the maximum scour depth at the back of a rib sill based on energy conservation. We then conducted a series of simulation experiments to test the proposed formula. The experimental results show that the scour depth, trench slope and the distance between ribs all increase with a decrease in debris flow density. We then compared the results of experiments and formula calculations. Through the testing analysis, we found that the calculation results of the conducted formula correspond with the experimental results better. Finally, taking Qipan Gully as an example, we designed the ultimate depth of a drainage canal for debris flow using the calculation formula.
KeywordDebris Flow Drainage Canal Scour Depth Energy Conservation Method Flume Experiment
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-015-3551-5
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordCHANNEL
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000370161700006
Funding OrganizationChinese Academy of Sciences(KZZD-EW-05-01-04) ; National Science and Technology Support Program(2012BAC06B02) ; sub-program of Science and technology research and development plan from China Railway(2014G004-A-5)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/14071
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, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Railway Eryuan Engn Grp Co LTD, Chengdu 610031, 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 Shu-liang,You Yong,Zhang Guang-ze,et al. Calculation of the ultimate depth of a scour pit after debris flow through drainage canal ribs[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(2):246-254.
APA Liu Shu-liang,You Yong,Zhang Guang-ze,Wang Dong,Zhao Hai-xin,&Sun Hao.(2016).Calculation of the ultimate depth of a scour pit after debris flow through drainage canal ribs.JOURNAL OF MOUNTAIN SCIENCE,13(2),246-254.
MLA Liu Shu-liang,et al."Calculation of the ultimate depth of a scour pit after debris flow through drainage canal ribs".JOURNAL OF MOUNTAIN SCIENCE 13.2(2016):246-254.
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