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Experimental study on the characteristics of a debris-flow drainage channel with an energy dissipation structure
Jiangang Chen1; Xiaoqing Chen1,2; Wanyu Zhao1; Xianbin Yu1; Xiaojun Wang1
Corresponding AuthorJiangang Chen ; Xiaoqing Chen
2017
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
EISSN1435-9537
Volume76Issue:1Pages:341-351
SubtypeArticle
Abstract

Experimental tests were conducted on a drainage channel with an energy dissipation structure and four channel slopes. Differences in the drainage channel were observed when the debris flow passed the energy dissipation structure. Additionally, the time-averaged debris-flow depth at the energy dissipation structure section was 1.78 times deeper than those in the upstream and downstream locations of the energy dissipation structure and the locations through the smooth drainage channel. Moreover, the time-averaged velocity downstream of the energy dissipation structure gradually increased with increasing channel slope and gradually decreased with increasing energy dissipation structure length. Changes in the channel slope and energy dissipation structure length produced a minimum time-averaged velocity that was 0.50-0.74 times the maximum time-averaged velocity. Furthermore, the energy dissipation ratios gradually increased with an increasing area of the energy dissipation structure, which increased gradually with increasing channel slope and then decreased slightly. The maximum energy dissipation ratio was obtained at the channel slope i = 25 %, and the minimum and maximum energy dissipation ratios were 3.2 and 69.5 %, respectively.

KeywordDebris Flow Drainage Channel Energy Dissipation Structures Geological Disaster Mitigation Engineering
DOI10.1007/s10064-016-0860-z
Indexed BySCI
Language英语
Quartile4区
TOP
WOS IDWOS:000394165200027
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18509
Collection山地灾害与地表过程重点实验室
Affiliation1.CAS Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No. 9, Block 4, Renmin South Road, Chengdu 610041, China
2.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 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
Jiangang Chen,Xiaoqing Chen,Wanyu Zhao,et al. Experimental study on the characteristics of a debris-flow drainage channel with an energy dissipation structure[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2017,76(1):341-351.
APA Jiangang Chen,Xiaoqing Chen,Wanyu Zhao,Xianbin Yu,&Xiaojun Wang.(2017).Experimental study on the characteristics of a debris-flow drainage channel with an energy dissipation structure.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,76(1),341-351.
MLA Jiangang Chen,et al."Experimental study on the characteristics of a debris-flow drainage channel with an energy dissipation structure".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 76.1(2017):341-351.
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