Predicting debris-flow scour depth downstream from a check dam
文献类型：会议论文
| 作者 | Chen, Hua-Yong1,2,3 ; Chen, Xiao-Qing1,2,3; Chen, Jian-Gang1,2,3; Tang, Jin-Bo2,3
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| 出版日期 | 2019 |
| 会议日期 | June 10, 2019 - June 13, 2019 |
| 会议地点 | Golden, CO |
| 关键词 | Bridge piers Dams Debris Energy dissipation Forecasting Hazards |
| DOI | 10.25676/11124/173126 |
| 页码 | 920-927 |
| 国家 | United states |
| 英文摘要 | Debris 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. |
| 源文献作者 | Access Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc. |
| 产权排序 | 1 |
| 会议录 | Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation
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| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISBN号 | 9780578510828 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/33775]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Chen, Hua-Yong |
| 作者单位 | 1.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences(CAS), Beijing; 100101, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu; 610041, China; |
| 推荐引用方式 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]. 见:. Golden, CO. June 10, 2019 - June 13, 2019. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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