| Debris-flow deposition: Effects of fluid viscosity and grain size | |
| Language | 英语 |
Li, Shuai ; Zhou, Gordon G.D.; Chen, Xiaoqing; Song, Dongri
| |
| 2019 | |
| Source Publication | Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation |
| Author of Source | Access Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc. |
| Pages | 361-368 |
| meeting | 7th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment |
| Conference Date | June 10, 2019 - June 13, 2019 |
| Conference Place | Golden, CO |
| Country | United states |
| Contribution Rank | 1 |
| Abstract | Debris flows in mountainous regions are of great concern because they present a serious threat to the residents and infrastructures in downstream areas as a result of their long runout distances. However, the mechanisms of debris-flow runout are still unclear because of many factors influencing debris-flow mobility. This study focuses on two major factors, namely, particle size and slurry viscosities. A series of experimental model tests were conducted in a rectangular inclined flume connected to a final horizontal plain. Results reveal that the debris-flow mobility is significantly influenced by the slurry viscosities. The runout distance initially increases and then decreases as the slurry viscosities increase. Also, runout distance for debris flows contain large particle sizes is longer than that of debris flows contain small particle sizes. The depositional widths are almost unchanged in the experimental test, which suggests that the debris flows are constrained by the fixed channel boundaries. The results of this study can improve the understanding the behavior and the deposition features of debris flows. © 2019 Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation. All rights reserved. |
| Keyword | Deposition Grain size and shape Hazards Particle size Viscosity |
| DOI | 10.25676/11124/173198 |
| ISBN | 9780578510828 |
| URL | 查看原文 |
| Indexed By | EI |
| Accession number | Accession number;20200408089046 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/33783 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Li, Shuai |
| Affiliation | Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No.9 Section 4,South RenMin Road, Chengdu; 610041, 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 | Li, Shuai,Zhou, Gordon G.D.,Chen, Xiaoqing,et al. Debris-flow deposition: Effects of fluid viscosity and grain size[C]//Access Limited Construction, Association of Environmental and Engineering Geologists, BGC Engineering Inc., et al., Geobrugg North America, KANE Geotech Inc.,2019:361-368. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 03-17_Li.pdf（899KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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