Dimensionless Assessment Method of Landslide Dam Formation Caused by Tributary Debris Flow Events
文献类型：期刊论文
| 作者 | Chen, Kun-Ting1; Chen, Xiao-Qing1 ; Hu, Gui-Sheng1; Kuo, Yu-Shu2; Huang, Yan-Rong2; Shieh, Chjeng-Lun2
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| 刊名 | GEOFLUIDS
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| 出版日期 | 2019-01-22 |
| 卷号 | 2019页码:14 |
| ISSN号 | 1468-8115 |
| DOI | 10.1155/2019/7083058 |
| 通讯作者 | Chen, Xiao-Qing(xqchen@imde.ac.cn) |
| 英文摘要 | In this study, we develop a dimensionless assessment method to evaluate landslide dam formation by considering the relationship between the run-out distance of a tributary debris flow and the width of the main stream, deposition thickness of the tributary debris flow, and the water depth of the main stream. Based on the theory of debris flow run-out distance and fan formation, landslide dam formation may result from a tributary debris flow as a result of two concurrent formation processes: (1) the runout distance of the tributary debris flow must be greater than the width of the main stream, and (2) the minimum deposition thickness of the tributary debris flow must be higher than the in situ water depth of the main stream. At the confluence, one of four types of depositional scenarios may result: (1) the tributary debris flow enters into the main stream and forms a landslide dam; (2) the tributary debris flow enters into the main stream but overflow occurs, thus preventing complete blockage of the main stream; (3) the tributary debris flow enters into the main stream, does not reach the far bank, and sediment remains partially above the water elevation of the main stream; or (4) the tributary debris flow enters into the main stream, does not reach the far bank, and sediment is fully submerged in the main stream. This method was applied to the analysis of 11 tributary debris flow events during Typhoon Morakot, and the results indicate that the dimensionless assessment method can be used to estimate potential areas of landslide dam formation caused by tributary debris flows. Based on this method, government authorities can determine potential areas of landslide dam formation caused by debris flows and mitigate possible disasters accordingly through a properly prepared response plan, especially for early identification. |
| WOS关键词 | HSIAOLIN VILLAGE ; PREDICTION ; FAILURE ; RIVER ; GEOMETRY ; BREACH ; TAIWAN |
| 资助项目 | National Natural Science Foundation of China[41501012] ; National Natural Science Foundation of China[41661144028] ; CAS Light of West China Program ; Chinese Academy of Science and Technology Service Network Planning[KFJ-STS-ZDTP-015] |
| WOS研究方向 | Geochemistry & Geophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000482129900001 |
| 出版者 | WILEY-HINDAWI |
| 资助机构 | National Natural Science Foundation of China ; CAS Light of West China Program ; Chinese Academy of Science and Technology Service Network Planning |
| 源URL | [http://ir.imde.ac.cn/handle/131551/26974]  |
| 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.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Natl Cheng Kung Univ, Dept Hydraul & Ocean Engn, Tainan 70101, Taiwan |
| 推荐引用方式 GB/T 7714 | Chen, Kun-Ting,Chen, Xiao-Qing,Hu, Gui-Sheng,et al. Dimensionless Assessment Method of Landslide Dam Formation Caused by Tributary Debris Flow Events[J]. GEOFLUIDS,2019,2019:14. |
| APA | Chen, Kun-Ting,Chen, Xiao-Qing,Hu, Gui-Sheng,Kuo, Yu-Shu,Huang, Yan-Rong,&Shieh, Chjeng-Lun.(2019).Dimensionless Assessment Method of Landslide Dam Formation Caused by Tributary Debris Flow Events.GEOFLUIDS,2019,14. |
| MLA | Chen, Kun-Ting,et al."Dimensionless Assessment Method of Landslide Dam Formation Caused by Tributary Debris Flow Events".GEOFLUIDS 2019(2019):14. |
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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