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An experimental study of dilute debris flow characteristics in a drainage channel with an energy dissipation structure
Chen, Jiangang; Chen, Xiaoqing; Li, Yun; Wang, Fei
2015
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
EISSN1872-6917
Volume193Pages:224-230
SubtypeArticle
Abstract

An experimental study was performed to determine the characteristics of a dilute debris flow in a drainage channel with an energy dissipation structure and a channel slope i of 15%. Flow pattern, debris flow depth, and velocity downstream of the energy dissipation structure were investigated along with the energy dissipation characteristics. Dilute debris flow velocity and depth were measured, analyzed, and subsequently used to characterize the dilute debris flow. The flow pattern in the drainage channel indicated that the dilute debris flow was highly turbulent and that flow depth initially increased. However, this increase was followed by a noticeable decrease after passing through the energy dissipation structure. The experimental results also indicated that the debris flow velocity gradually decreased as the length of the energy dissipation structure increased, whereas flow depth gradually increased with increasing length of the energy dissipation structure. Velocity characteristics and depths of the dilute debris flow downstream of the energy dissipation structure were also affected to some extent by variations in the width of the energy dissipation structure. The energy dissipation ratio gradually increased with increasing length and width of the energy dissipation structure for i = 15%, and the maximum energy dissipation ratio was approximately 58.69%. These experimental results provide a theoretical foundation for optimal design of drainage channels with energy dissipation structures. (C) 2015 Elsevier B.V. All rights reserved.

KeywordDebris Flow Drainage Channel Energy Dissipation Structure Geological Disaster
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.enggeo.2015.05.004
URL查看原文
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordWenchuan Earthquake Area ; Landslide Dam Failures ; Chi-chi Earthquake ; Central Taiwan ; August 2010 ; Check-dam ; Province ; Impacts ; Torrent ; Zhouqu
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000357350000018
Funding OrganizationNational Science Foundation of China(41302283) ; Chinese Academy of Sciences(KZZD-EW-05-01) ; Institute of Mountain Hazards and Environment, CAS(SDS-QN-1305) ; West Light Foundation of Chinese Academy of Sciences
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Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/8940
Collection山地灾害与地表过程重点实验室
Corresponding AuthorChen, Xiaoqing
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Chen, Jiangang,Chen, Xiaoqing,Li, Yun,et al. An experimental study of dilute debris flow characteristics in a drainage channel with an energy dissipation structure[J]. ENGINEERING GEOLOGY,2015,193:224-230.
APA Chen, Jiangang,Chen, Xiaoqing,Li, Yun,&Wang, Fei.(2015).An experimental study of dilute debris flow characteristics in a drainage channel with an energy dissipation structure.ENGINEERING GEOLOGY,193,224-230.
MLA Chen, Jiangang,et al."An experimental study of dilute debris flow characteristics in a drainage channel with an energy dissipation structure".ENGINEERING GEOLOGY 193(2015):224-230.
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