IMHE OpenIR  > 山地灾害与地表过程重点实验室
Predicting debris-flow scour depth downstream from a check dam
Language英语
Chen, Hua-Yong1,2,3; Chen, Xiao-Qing1,2,3; Chen, Jian-Gang1,2,3; Tang, Jin-Bo1,2
2019
Source PublicationDebris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation
Author of SourceAccess Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc.
Pages920-927
meeting7th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment
Conference DateJune 10, 2019 - June 13, 2019
Conference PlaceGolden, CO
CountryUnited states
Contribution Rank1
AbstractDebris flows often pose great threats to people’s lives and property in mountainous regions. For example on August 8, 2010, a debris flow with a volume of 220×104 m3 occurred in ZhouQu county, Gansu province, China. The debris flow resulted in not only significant loss of farmlands, but also in 1,248 deaths and 496 people missing. The construction of check dams in debris-flow valleys is a useful way to mitigate deaths and damages. Herein, we investigate scour downstream from check dam spillway structures. We propose that the main parameters which determine scour depth of a scour hole downstream from check dams, include flow density, flow depth, flow discharge per unit width, and acceleration due to gravity. Physical experiments were also carried out to investigate debris flow movement and scour characteristics. In addition, a theoretical expression was deduced to predict the maximum scour depth downstream from check dams. There was a good correlation between experimental data and results predicted from theory. The results obtained in this paper can provide constraints for the design of check dams in mountainous areas. © 2019 Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation. All rights reserved.
KeywordBridge piers Dams Debris Energy dissipation Forecasting Hazards
DOI10.25676/11124/173126
ISBN9780578510828
URL查看原文
Indexed ByEI
Accession numberAccession number;20200408088110
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33775
Collection山地灾害与地表过程重点实验室
Corresponding AuthorChen, Hua-Yong
Affiliation1.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu; 610041, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences(CAS), Beijing; 100101, 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, Hua-Yong,Chen, Xiao-Qing,Chen, Jian-Gang,et al. Predicting debris-flow scour depth downstream from a check dam[C]//Access Limited Construction, Association of Environmental and Engineering Geologists, BGC Engineering Inc., et al., Geobrugg North America, KANE Geotech Inc.,2019:920-927.
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