| Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency | |
Xie Xiang-ping1 ; Wei Fang-qiang2; Wang Xiao-jun1; Yang Hong-juan3
| |
| Corresponding Author | Wei Fang-qiang(fqwei@cigit.ac.cn) |
| 2019-03-01 | |
| Source Publication | JOURNAL OF MOUNTAIN SCIENCE
 |
| ISSN | 1672-6316 |
| Volume | 16Issue:3Pages:619-629 |
| Abstract | The herringbone water-sediment separation structure (HWSSS) was developed to prevent debris flows. This paper mainly focuses on evaluating the sediment separation efficiency of HWSSS in debris flow prevention and determining the grid opening width D, a crucial structure parameter for HWSSS design. Theoretical analysis on the total sediment separation rate P-t reveals that the efficiency of sediment separation is much related with sediment grain size distribution (GSD) and grid opening width. The lower limit of Pt is deduced from the perspective of safety consideration by transforming debris flow into sediment-laden flow. Hydraulic model tests were carried out. Based on the regression analysis of the experimental data, the quantitative relationships between Pt and D and GSD characteristic values were finally established. A procedure for determining optimal grid opening width is proposed based on these analyses. These results are of significance in evaluating sediment separation effect by HWSSS in debris flow prevention and contribute to a more explicit methodology for design of HWSSS. |
| Keyword | Debris flow Water-sediment separation Structure design Sediment separation efficiency Grid opening width |
| DOI | 10.1007/s11629-018-5038-7 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Science and Technology Support Program[2011BAK12B00] |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000460754100010 |
| Funding Organization | National Science and Technology Support Program |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/25308 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Wei Fang-qiang |
| Affiliation | 1.Anyang Inst Technol, Anyang 455000, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Xie Xiang-ping,Wei Fang-qiang,Wang Xiao-jun,et al. Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(3):619-629. |
| APA | Xie Xiang-ping,Wei Fang-qiang,Wang Xiao-jun,&Yang Hong-juan.(2019).Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency.JOURNAL OF MOUNTAIN SCIENCE,16(3),619-629. |
| MLA | Xie Xiang-ping,et al."Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency".JOURNAL OF MOUNTAIN SCIENCE 16.3(2019):619-629. |
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| File Name/Size | DocType | Version | Access | License | ||
| Determination of opt（2722KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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