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Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense
Xie, Tao1,2,3; Wei, Fangqiang2; Yang, Hongjuan2; Gardner, James S.4; Xie, Xiangping1,2,3; Dai, Zhiqiang2; Jiang, Zhen2
Corresponding AuthorWei, Fangqiang
2016
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
EISSN1435-9537
Volume75Issue:1Pages:101-108
SubtypeArticle
AbstractA new water-sediment separation structure with a herringbone separation grid has been developed for debris flow defense. Previous model experiments showed that, compared to existing structures, this structure can continuously maintain its water-sediment separation function. However, in the structure design, the length of the separation grid is key to its success in separating water and sediment. This paper presents a theoretical formula for calculating the design length of the grid. The theoretical formula shows that the grid length relates to the debris flow velocity v (x), the grid width B, and the grid incline angle theta. A series of model experiments were conducted in the laboratory to test the accuracy of the formula. The results show that the experimental value and the theoretical value for grid length form a linear relationship and the design length of the grid may be corrected by a coefficient. Further analysis indicates that the correction coefficient changes with the bulk density of debris flow. Finally, a formula for determining the grid design length is derived from the theoretical formula, corrected using a coefficient related to the bulk density of a debris flow.
KeywordDebris Flow Water-sediment Separation Structure Herringbone Water-sediment Separation Grid Structure Dimension Debris Flow Defense
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10064-015-0726-9
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordMITIGATION
Language英语
Quartile4区
TOP
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000369994600008
Funding OrganizationNational Science and Technology Support Program(2011BAK12B00) ; International Cooperation Project of the Department of Science and Technology of Sichuan Province(2009HH0005)
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/15108
Collection山区发展研究中心
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Manitoba, Clayton Riddell Fac Environm Earth & Resources, Winnipeg, MB, Canada
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
Xie, Tao,Wei, Fangqiang,Yang, Hongjuan,et al. Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2016,75(1):101-108.
APA Xie, Tao.,Wei, Fangqiang.,Yang, Hongjuan.,Gardner, James S..,Xie, Xiangping.,...&Jiang, Zhen.(2016).Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,75(1),101-108.
MLA Xie, Tao,et al."Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 75.1(2016):101-108.
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