| Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills | |
Wang, Tao1 ; Chen, Xiaoqing1; Li, Kun2; Chen, Jiangang1; You, Yong1
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| 2018 | |
| Source Publication | ENGINEERING GEOLOGY
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| ISSN | 0013-7952 |
| EISSN | 1872-6917 |
| Volume | 233Pages:55-62 |
| Subtype | Article |
| Abstract | In this study, experiments were performed in a 6-m-long flume to determine the characteristics of viscous debris flows in a new type of drainage channel with oblique symmetrical sills. The debris flow velocity was measured and subsequently used to characterise the viscous debris flow. The influences of the channel slope, transverse length of sills, and row spacing of sills on the debris flow velocity and the velocity reduction ratio P were investigated. The experimental results indicated that the viscous debris flow velocity increased as the channel slope increased from 0.10 to 0.15. However, the velocity decreased as the ratio of the transverse length of sills to the row spacing of sills increased from 0.13 to 0.53. Different combinations of the channel slopes, transverse lengths of sills, and row spacing of sills reduced the velocity by 14.2%-51.1% compared to the velocity in a smooth channel. The effects of the channel slopes, transverse lengths of sills, and row spacing of sills on P could be described using a power-law equation. Most of the errors in P prediction ranged from - 25.0% to 25.0%. A comparison of P in drainage channels with different deceleration measures indicated that P increased with an increase in the length of a channel with deceleration measures. These experimental results serve as a useful reference for the design of drainage channels with oblique symmetrical sills. |
| Keyword | Debris flow Drainage channel Oblique symmetrical sill Mitigation structure |
| DOI | 10.1016/j.enggeo.2017.11.024 |
| Indexed By | SCI |
| WOS Keyword | ENERGY-DISSIPATION STRUCTURE ; WENCHUAN EARTHQUAKE AREA ; MITIGATION ; DESIGN |
| Language | 英语 |
| Quartile | 3区 |
| Funding Project | National Science Foundation of China[51409243] ; National Key Technology Research and Development Program of China[2014BAL05801] |
| TOP | 否 |
| WOS Research Area | Engineering ; Geology |
| WOS Subject | Engineering, Geological ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000424187300006 |
| Funding Organization | National Science Foundation of China ; National Key Technology Research and Development Program of China |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/20879 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Chen, Xiaoqing |
| Affiliation | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Southwest Petr Univ, Sch Civil Engn & Architecture, Chengdu 637001, Sichuan, Peoples R 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 | Wang, Tao,Chen, Xiaoqing,Li, Kun,et al. Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills[J]. ENGINEERING GEOLOGY,2018,233:55-62. |
| APA | Wang, Tao,Chen, Xiaoqing,Li, Kun,Chen, Jiangang,&You, Yong.(2018).Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills.ENGINEERING GEOLOGY,233,55-62. |
| MLA | Wang, Tao,et al."Experimental study of viscous debris flow characteristics in drainage channel with oblique symmetrical sills".ENGINEERING GEOLOGY 233(2018):55-62. |
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| Experimental study o（1531KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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