Experimental study on discharge process regulation to debris flow with open-type check dams
文献类型：期刊论文
| 作者 | Sun Hao1,2; You Yong1; Liu Jinfeng1; Zhang Guangze3; Feng Tao3; Wang Dong3 |
| 刊名 | LANDSLIDES
 |
| 出版日期 | 2020 |
| 页码 | DOI: 10.1007/s10346-020-01535-y |
| 关键词 | Debris flow Open-type check dams Process regulation Temporary blocking |
| ISSN号 | 1612-510X |
| DOI | 10.1007/s10346-020-01535-y |
| 产权排序 | 1 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Open-type check dams are widely used to mitigate debris-flow hazards in mountainous areas. However, the regulation function of dams is a non-trivial and still open issue. With the aim to better understand the process regulation of open-type check dam against debris flow, in this study, a series of specially designed flume experiments are conducted as well as contrast tests of closed-type dam. The effects of the debris-flow bulk density, opening form, and dam size are considered. Analysis of the flow patterns, discharge process, peak discharge, and flow duration give an insight into regulating detail. Results reveal that the regulation characteristics depend on the blocking performance of open structure. There are differences in the debris-flow hydrography after passing through an open-type or closed-type dam, and the temporary blocking phenomenon is found to play an important role in regulating the discharge process. Moreover, open-type dams produce a reduction and time lag in the peak discharge, and more effectively regulate the travel time of debris flow downstream than closed-type dam. The reduction ratio of peak discharge for narrow openings is similar to that of closed-type dam and decreases as the relative opening becomes wider. Finally, based on these regulation characteristics, the application of open-type dams for a novel form of debris flow mitigation is discussed from the perspective of balancing interception and regulation of sediment. |
| 电子版国际标准刊号 | 1612-5118 |
| 语种 | 英语 |
| WOS记录号 | WOS:000571674100001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46287]  |
| 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 | You Yong |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, 9 Block 4,Renminnanlu Rd, Chengdu 610041, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.China Railway Eryuan Engn Grp Co LTD, Chengdu 610031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Hao,You Yong,Liu Jinfeng,et al. Experimental study on discharge process regulation to debris flow with open-type check dams[J]. LANDSLIDES,2020:DOI: 10.1007/s10346-020-01535-y. |
| APA | Sun Hao,You Yong,Liu Jinfeng,Zhang Guangze,Feng Tao,&Wang Dong.(2020).Experimental study on discharge process regulation to debris flow with open-type check dams.LANDSLIDES,DOI: 10.1007/s10346-020-01535-y. |
| MLA | Sun Hao,et al."Experimental study on discharge process regulation to debris flow with open-type check dams".LANDSLIDES (2020):DOI: 10.1007/s10346-020-01535-y. |
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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