IMHE OpenIR  > 山地灾害与地表过程重点实验室
Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills
Wang, Tao1; Chen, Xiaoqing1; Li, Kun2; Chen, Jiangang1; You, Yong1
2018
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
EISSN1872-6917
Volume233Pages:55-62
SubtypeArticle
AbstractIn this study, experiments were performed in a 6-m-long flume to determine the characteristics of viscous debris flows in a new type of drainage channel with oblique symmetrical sills. The debris flow velocity was measured and subsequently used to characterise the viscous debris flow. The influences of the channel slope, transverse length of sills, and row spacing of sills on the debris flow velocity and the velocity reduction ratio P were investigated. The experimental results indicated that the viscous debris flow velocity increased as the channel slope increased from 0.10 to 0.15. However, the velocity decreased as the ratio of the transverse length of sills to the row spacing of sills increased from 0.13 to 0.53. Different combinations of the channel slopes, transverse lengths of sills, and row spacing of sills reduced the velocity by 14.2%-51.1% compared to the velocity in a smooth channel. The effects of the channel slopes, transverse lengths of sills, and row spacing of sills on P could be described using a power-law equation. Most of the errors in P prediction ranged from - 25.0% to 25.0%. A comparison of P in drainage channels with different deceleration measures indicated that P increased with an increase in the length of a channel with deceleration measures. These experimental results serve as a useful reference for the design of drainage channels with oblique symmetrical sills.
KeywordDebris flow Drainage channel Oblique symmetrical sill Mitigation structure
DOI10.1016/j.enggeo.2017.11.024
Indexed BySCI
WOS KeywordENERGY-DISSIPATION STRUCTURE ; WENCHUAN EARTHQUAKE AREA ; MITIGATION ; DESIGN
Language英语
Quartile3区
Funding ProjectNational Science Foundation of China[51409243] ; National Key Technology Research and Development Program of China[2014BAL05801]
TOP
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000424187300006
Funding OrganizationNational Science Foundation of China ; National Key Technology Research and Development Program of China
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20879
Collection山地灾害与地表过程重点实验室
Corresponding AuthorChen, Xiaoqing
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
2.Southwest Petr Univ, Sch Civil Engn & Architecture, Chengdu 637001, Sichuan, 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
Wang, Tao,Chen, Xiaoqing,Li, Kun,et al. Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills[J]. ENGINEERING GEOLOGY,2018,233:55-62.
APA Wang, Tao,Chen, Xiaoqing,Li, Kun,Chen, Jiangang,&You, Yong.(2018).Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills.ENGINEERING GEOLOGY,233,55-62.
MLA Wang, Tao,et al."Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills".ENGINEERING GEOLOGY 233(2018):55-62.
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