The 1786 earthquake-triggered landslide dam and subsequent dam-break flood on the Dadu River, southwestern China
文献类型：期刊论文
| 作者 | Dai, FC; Lee, CF; Deng, JH; Tham, LG |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2005-02-15 |
| 卷号 | 65期号:3-4页码:205-221 |
| 关键词 | Landslide Dam Breach Flood Discharge Earthquake |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2004.08.011 |
| 文献子类 | Article |
| 英文摘要 | Chinese historic documents recorded that on June 1, 1786, a strong M=7.75 earthquake occurred in the Kangding-Luding area, Sichuan, southwestern China, resulting in a large landslide that fell into the Dadu River. As a result, a landslide dam blocked the river. Ten days later, the sudden breaching of the dam resulted in catastrophic downstream flooding. Historic records document over 100,000 deaths by the flood. This may be the most disastrous event ever caused by landslide dam failures in the world. Although a lot of work has been carried out to determine the location, magnitude and intensity of the 1786 earthquake, relatively little is known about the occurrence and nature of the landslide dam. In this paper, the dam was reconstructed using historic documents and geomorphic evidence. It was found that the landslide dam was about 70 m high, and it created a lake with a water volume of about 50 x 10(6) m(3) and an area of about 1.7 km(2). The landslide dam breached suddenly due to a major aftershock on June 10, 1786. The peak discharge at the dam breach was estimated using regression equations and a physically based predictive equation. The possibility of a future failure of the landslide seems high, particularly due to inherent seismic risk, and detailed geotechnical investigations are strongly recommended for evaluating the current stability of the landslide. (C) 2004 Elsevier B.V. All rights reserved. |
| WOS关键词 | NATURAL DAMS ; NEW-ZEALAND ; DISCHARGE ; FAILURE |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000227347600003 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64979]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Lee, CF |
| 作者单位 | 1.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Rock & Soil Mech, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, FC,Lee, CF,Deng, JH,et al. The 1786 earthquake-triggered landslide dam and subsequent dam-break flood on the Dadu River, southwestern China[J]. GEOMORPHOLOGY,2005,65(3-4):205-221. |
| APA | Dai, FC,Lee, CF,Deng, JH,&Tham, LG.(2005).The 1786 earthquake-triggered landslide dam and subsequent dam-break flood on the Dadu River, southwestern China.GEOMORPHOLOGY,65(3-4),205-221. |
| MLA | Dai, FC,et al."The 1786 earthquake-triggered landslide dam and subsequent dam-break flood on the Dadu River, southwestern China".GEOMORPHOLOGY 65.3-4(2005):205-221. |
入库方式： OAI收割
来源：地质与地球物理研究所
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