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The hydraulic condition analysis and optimal cross-section design of the "Rectangle-V" shaped drainage canal of debris flow
Language英语
Yong You1,2; Jinfeng Liu1,2; Guoqiang Ou1,2
2007
Source PublicationIGARSS: 2007 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-12: SENSING AND UNDERSTANDING OUR PLANET
Author of SourceIEEE International Symposium on Geoscience and Remote Sensing IGARSS
Pages4715-4718
meetingIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJune 23, 2007 - June 28, 2007
Conference PlaceBarcelona
CountrySPAIN
PublisherIEEE
Contribution Rank1
AbstractThe drainage canal is one of the most widely-used engineering measures in preventing debris flow. The cross-section shape and size are important parameters for designing the drainage canal of debris flow. While how to choose the optimal shape and size to make the drainage canal of debris flow have the best discharging ability is a problem few people have researched. The "Rectangle-V" shape is one of the widely-used cross-section shapes of debris flow drainage canal. This paper chooses it as a researching object, analyzes its optimal hydraulic condition, and discusses its optimal cross-section design. The cross-section configuration parameter (M) of "Rectangle-V" shaped debris flow drainage canal is defined as the ratio of wetted perimeter (P) to hydraulic radius(R). Based on the definition, the calculation formula of M is deduced under the optimal hydraulic condition. The formula indicates that M only relates with the bottom transverse slope coefficient under the optimal hydraulic condition. Assuming the discharge of debris flow (Q), the longitudinal gradient of debris flow drainage canal (1) and the gradation of debris flow grain size as known, we deduce the combinatorial calculating formulas of the cross-section size of "Rectangle-V" shaped debris flow drainage canal by using the simultaneous numerical solution method. On the basis of the analysis of the optimal hydraulic condition of "Rectangle-V" shaped debris flow drainage canal, this paper takes the Huoba Gully as an example for the optimal cross-section design of debris flow drainage canal.
KeywordRectangle-V shaped drainage canal hydraulic condition optimal cross-section design debris flow
DOI10.1109/IGARSS.2007.4423912
ISBN978-1-4244-1211-2
ISSN2153-6996
Indexed ByCPCI ; EI
WOS IDWOS:000256657304076
EI Accession NumberAccession number:20080811106137
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25237
Collection成都山地所知识仓储(2009年以前)
山地灾害与地表过程重点实验室
Corresponding AuthorYong You
Affiliation1.Key Laboratory of Mountain Surface Process and Hazards, Chinese Academy of Sciences, Chengdu, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 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
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GB/T 7714
Yong You,Jinfeng Liu,Guoqiang Ou. The hydraulic condition analysis and optimal cross-section design of the "Rectangle-V" shaped drainage canal of debris flow[C]//IEEE International Symposium on Geoscience and Remote Sensing IGARSS:IEEE,2007:4715-4718.
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