An experimental determination of the relationship between the minimum height of landslide dams and the run-out distance of landslides
文献类型：期刊论文
| 作者 | Chen, Kun-Ting1,5; Chen, Tien-Chien5; Chen, Xiao-Qing2,3,4 ; Chen, Hua-Yong2,3,4; Zhao, Wan-Yu2,4
|
| 刊名 | LANDSLIDES
 |
| 出版日期 | 2021-01-29 |
| 页码 | DOI: 10.1007/s10346-020-01605-1 |
| 关键词 | Landslide Landslide dam Dam height Run-out distance Climate change |
| ISSN号 | 1612-510X |
| DOI | 10.1007/s10346-020-01605-1 |
| 产权排序 | 1 |
| 通讯作者 | Chen, Xiao-Qing(xqchen@imde.ac.cn) |
| 文献子类 | Article; Early Access |
| 英文摘要 | Landslides frequently occur on mountain slopes due to earthquakes and rainfall. When a landslide occurs near a river, the landslide mass moves at a certain speed towards the river channel and eventually stops at the channel either due to frictional resistance or by being blocked by the upslope on the opposite bank of the river. If the width of the river channel at the landslide site (B-W) is narrow and the volume of the landslide (V-L) is sufficient, the landslide may block the river channel, resulting in landslide dams. Landslide dam is a significant hazard in mountainous area, when dam failure will cause severe destruction and affect downstream area. The frequency, scale, and disaster of landslide dam will be more serious than before based on global climate change. To reduce disasters caused by landslide dams, rapid assessments of dam stability and dam-break discharge must be conducted in the early stages of the formation of landslide dams. One of the essential parameters for these assessments is the minimum height of the landslide dam (H-Dmin). However, landslides may occur in remote, inaccessible mountainous areas where the geometrical parameters of landslide dams may not be immediately obtained, making it difficult to perform emergency risk assessments of barrier lakes. The magnitude of H-Dmin changes due to the effects of the run-out distance of the landslide (Lrun - out) and B-W, but a quantitative relationship has not been reported in the literature. Hence, this study investigated the effects of V-L, the slope angle (theta(S)), the maximum height of the landslide (H-L), B-W, and other parameters on H-Dmin through laboratory experiments. The relationship between Lrun - out, B-W, and H-Dmin was determined, and a dimensionless method for evaluating H-Dmin was established. This method can be applied to predict the minimum height of landslide dams when the position of the landslide is known. Additionally, when landslide dams form but H-Dmin is not known due to difficulties in on-site study, this method can quickly assess the height of the dam and provide an assessment of the risks related to the landslide dam. This greatly reduces the uncertainties associated with the prevention and emergency management of landslide dams, and can assist government authorities to set up the disaster early warning plans of landslide dam under future climate change condition. |
| 电子版国际标准刊号 | 1612-5118 |
| 资助项目 | National Natural Science Foundation of China[U19A2049] ; National Natural Science Foundation of China[41771045] ; Key Research Program of Chinese Academy of Sciences[KFZD-SW425] ; Foundation of Youth Innovation Promotion Association, Chinese Academy of Sciences[2017425] ; CAS Light of West China Program ; Foundation for Young Scientist of Institute of Mountain Hazards and Environment, CAS[SDS-QN-1912] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000612890400001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Foundation of Youth Innovation Promotion Association, Chinese Academy of Sciences ; CAS Light of West China Program ; Foundation for Young Scientist of Institute of Mountain Hazards and Environment, CAS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/55901]  |
| 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 | Chen, Xiao-Qing |
| 作者单位 | 1.Natl Pingtung Univ Sci & Technol, Gen Res Serv Ctr, Compound Disaster Prevent Res Ctr, Pingtung 912301, Taiwan 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 5.Natl Pingtung Univ Sci & Technol, Dept Soil & Water Conservat, Pingtung 912301, Taiwan |
| 推荐引用方式 GB/T 7714 | Chen, Kun-Ting,Chen, Tien-Chien,Chen, Xiao-Qing,et al. An experimental determination of the relationship between the minimum height of landslide dams and the run-out distance of landslides[J]. LANDSLIDES,2021:DOI: 10.1007/s10346-020-01605-1. |
| APA | Chen, Kun-Ting,Chen, Tien-Chien,Chen, Xiao-Qing,Chen, Hua-Yong,&Zhao, Wan-Yu.(2021).An experimental determination of the relationship between the minimum height of landslide dams and the run-out distance of landslides.LANDSLIDES,DOI: 10.1007/s10346-020-01605-1. |
| MLA | Chen, Kun-Ting,et al."An experimental determination of the relationship between the minimum height of landslide dams and the run-out distance of landslides".LANDSLIDES (2021):DOI: 10.1007/s10346-020-01605-1. |
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。