Study on debris flow discharge characteristics of check dam spillway
文献类型：期刊论文
| 作者 | Zhang, Wen-tao2,3; Liu, Jin-feng3 ; Xu, Zheng-xuan1; He, Ping1; You, Yong3; Sun, Hao3; Yang, Hua-quan2,3
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 36期号:8页码:11 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0218452 |
| 通讯作者 | Liu, Jin-feng(liujf@imde.ac.cn) |
| 英文摘要 | After a check dam is filled with sediment, the debris flow will flow out from the spillway. Insufficient discharge capacity of the spillway can lead to debris flow scouring the dam's shoulder and foundation. Therefore, it is necessary to study the discharge capacity of the spillway. It is of great importance for further optimizing the structural design of the check dam. This article analyzes discharge characteristics of debris flow of a spillway through a series of flume experiments. According to the motion states, it can be divided into five stages: contact stage of the spillway, flushing and climbing stage, increasing and reflux stage, stable discharge stage, and final discharge stage. We analyzed the influencing factors of the discharge capacity, including the type of spillway, bulk density of debris flow, scale of debris flow, flume gradient, and effective opening width of the spillway. Furthermore, we derived a calculation formula of discharge for the spillway based on Bernoulli's principle. Finally, we considered the influence of the ratio of flow area and Froude number to the discharge coefficient and established a calculation method of discharge. Consequently, we compared the calculated results with the measured results and found them to be in good agreement. Our research results provide a quantitative calculation method for the design of spillways and energy dissipation and erosion prevention projects under check dams, which is beneficial for improving engineering value and for better serving disaster prevention and reduction efforts. |
| WOS关键词 | DESIGN ; SCOUR ; WEIRS |
| 资助项目 | National Natural Science Foundation of China10.13039/501100001809[42201095] ; National Natural Science Foundation of China[TB2023028] ; Postdoctoral Research Project Special Funding of Sichuan |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001298527500003 |
| 出版者 | AIP Publishing |
| 资助机构 | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China ; Postdoctoral Research Project Special Funding of Sichuan |
| 源URL | [http://ir.imde.ac.cn/handle/131551/58371]  |
| 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 | Liu, Jin-feng |
| 作者单位 | 1.China Railway Eryuan Engn Grp Co Ltd, Chengdu 610031, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610299, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Wen-tao,Liu, Jin-feng,Xu, Zheng-xuan,et al. Study on debris flow discharge characteristics of check dam spillway[J]. PHYSICS OF FLUIDS,2024,36(8):11. |
| APA | Zhang, Wen-tao.,Liu, Jin-feng.,Xu, Zheng-xuan.,He, Ping.,You, Yong.,...&Yang, Hua-quan.(2024).Study on debris flow discharge characteristics of check dam spillway.PHYSICS OF FLUIDS,36(8),11. |
| MLA | Zhang, Wen-tao,et al."Study on debris flow discharge characteristics of check dam spillway".PHYSICS OF FLUIDS 36.8(2024):11. |
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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