IMHE OpenIR  > 山地灾害与地表过程重点实验室
Characteristics of a Debris-Flow Drainage Channel with a Step-Pool Configuration
Chen, Xiaoqing1,2; Chen, Jiangang1; Zhao, Wanyu1; Li, Yun1; You, Yong1
2017
Source PublicationJOURNAL OF HYDRAULIC ENGINEERING
ISSN0733-9429
EISSN1943-7900
Volume143Issue:9
SubtypeArticle
AbstractTheoretical analysis and experimental testing of a debris-flow drainage channel with a step-pool configuration are conducted in this paper. The design conditions of the drainage channel with step-pool configuration were obtained by theoretical analysis, including the design shape of the step-pool configuration, design slope of the step section, and total length of a single step-pool configuration. In addition, the correction coefficients of the debris-flow jet length were obtained with different debris-flow densities by comparing the experimental and calculation results. Moreover, the debris flow repeats an acceleration-deceleration motion in the drainage channel to achieve a balanced discharge without scouring or deposition. At the downstream of the step-pool configuration, the average debris-flow velocity decreased by approximately 28 and 40% with debris-flow densities of rho = 1,700 and 2,000 kg/m(3). Furthermore, the energy-dissipation ratio varied between debris-flow densities of rho = 1,700 and 2,000 kg/m(3). Finally, the authors discuss different types of drainage channels in practical debris-flow hazard-mitigation engineering and parameter variations of these drainage channels. (C) 2017 American Society of Civil Engineers.
KeywordDebris Flow Drainage Channels Step-pool Configuration Experimental Study Energy Dissipation
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1061/(ASCE)HY.1943-7900.0001352
WOS Subject ExtendedEngineering ; Water Resources
Indexed BySCI
WOS KeywordENERGY-DISSIPATION STRUCTURE ; WENCHUAN EARTHQUAKE AREA ; GRADE-CONTROL STRUCTURES ; MOUNTAIN STREAM ; MORPHOLOGY ; CHINA ; RESTORATION ; RESISTANCE ; RIVERS
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Civil ; Engineering, Mechanical ; Water Resources
WOS IDWOS:000407336000019
Funding OrganizationNational Key Technology Research and Development Program of China(2014BAL05B01) ; Science and Technology Service Network Initiative of CAS(KFJ-EW-STS-094) ; Youth Innovation Promotion Association CAS(2017426) ; West Light Foundation of CAS
PublisherASCE-AMER SOC CIVIL ENGINEERS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19037
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.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, 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
Chen, Xiaoqing,Chen, Jiangang,Zhao, Wanyu,et al. Characteristics of a Debris-Flow Drainage Channel with a Step-Pool Configuration[J]. JOURNAL OF HYDRAULIC ENGINEERING,2017,143(9).
APA Chen, Xiaoqing,Chen, Jiangang,Zhao, Wanyu,Li, Yun,&You, Yong.(2017).Characteristics of a Debris-Flow Drainage Channel with a Step-Pool Configuration.JOURNAL OF HYDRAULIC ENGINEERING,143(9).
MLA Chen, Xiaoqing,et al."Characteristics of a Debris-Flow Drainage Channel with a Step-Pool Configuration".JOURNAL OF HYDRAULIC ENGINEERING 143.9(2017).
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