Numerical assessment of the impeding effect of check dams in the Hongchun debris flow gully, Sichuan Province, China
文献类型：期刊论文
| 作者 | Shen, Wei2,4; Wang, Dongpo2; He, Siming1,3 ; Li, Tonglu5
|
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2020-02-26 |
| 页码 | DOI: 10.1007/s10064-020-01755-5 |
| 关键词 | Natural hazards Numerical simulation Debris flow Check dams Bed entrainment |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-020-01755-5 |
| 产权排序 | 3 |
| 通讯作者 | Wang, Dongpo(wangdongpo2014@cdut.edu.cn) |
| 文献子类 | Article; Early Access |
| 英文摘要 | To mitigate potential damage from debris flows, numerous check dams have been constructed in thousands of debris flow gullies all over the world. However, the efficiencies of these check dams are largely unknown because they are normally designed based on empirical methods. This paper presents an assessment of the impeding effect of check dams constructed in the Hongchun debris flow gully in Sichuan Province, China by using an improved finite difference model. Compared with other models, the improved model can consider both the impeding effect of check dams and bed entrainment. We analyzed the impeding effect of these check dams on different initial scales of debris flows. The results show that these check dams perform quite well in constraining bed entrainment downstream of the gully. The average velocity, peak discharge, and final scale of a debris flow in the gully can be substantially reduced by constructed check dams. The impeding effect is sufficient when the initial volume of the debris flow is less than 1.5 times that of the catastrophic debris flow event that occurred in this gully on 14 August 2010. This study improves our understanding of the influence of check dams on the dynamic and bed entrainment processes of debris flows. The model adopted in this study can be a robust tool to quantify the efficiencies of existing check dams and provide reasonable guidance in the design of check dams in debris flow gullies. |
| 电子版国际标准刊号 | 1435-9537 |
| WOS关键词 | WENCHUAN EARTHQUAKE ; SPH MODEL ; LANDSLIDE ; ENTRAINMENT ; PROPAGATION ; MITIGATION ; HAZARD ; EVENT |
| 资助项目 | Natural Science Foundation of China[41877266] ; Natural Science Foundation of China[41790433] ; National Key R&D Program of China[2017YFC1501000] ; National Key R&D Program of China[2017YFC1501302] ; China Scholarship Council (CSC) - University of Bologna Joint Scholarship[201806560011] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000516795100001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Natural Science Foundation of China ; National Key R&D Program of China ; China Scholarship Council (CSC) - University of Bologna Joint Scholarship |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34063]  |
| 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 | Wang, Dongpo |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China; 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China; 4.Univ Bologna, Dept Biol Geol & Environm Sci, I-40126 Bologna, Italy; 5.Changan Univ, Dept Geol Engn, Xian 710064, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Wei,Wang, Dongpo,He, Siming,et al. Numerical assessment of the impeding effect of check dams in the Hongchun debris flow gully, Sichuan Province, China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:DOI: 10.1007/s10064-020-01755-5. |
| APA | Shen, Wei,Wang, Dongpo,He, Siming,&Li, Tonglu.(2020).Numerical assessment of the impeding effect of check dams in the Hongchun debris flow gully, Sichuan Province, China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,DOI: 10.1007/s10064-020-01755-5. |
| MLA | Shen, Wei,et al."Numerical assessment of the impeding effect of check dams in the Hongchun debris flow gully, Sichuan Province, China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):DOI: 10.1007/s10064-020-01755-5. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。