Characteristics and failure mechanism of an ancient earthquake-induced landslide with an extremely wide distribution area
文献类型：期刊论文
| 作者 | HUANG Chao; LI Yu-sheng; YI Shu-jian; LIU Kai; WU Chun-hao
|
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2018-02 |
| 卷号 | 15期号:2页码:380-393 |
| 关键词 | Earthquake-induced Landslide Lamuajue Landslide Ancient Landslide Geological Feature Failure Mechanism |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4527-4 |
| 通讯作者 | LI Yu-sheng |
| 英文摘要 | The Lamuajue landslide is located in Lamuajue village on the right bank of the Meigu River, Sichuan Province, China. This landslide is an ancient landslide with an extremely wide distribution area, covering an area of 19 km2 with a maximum width of 5.5 km and an estimated residual volume of 3×108 m3. The objectives of this study were to identify the characteristics and failure mechanism of this landslide. In this study, based on field investigations, aerial photography, and profile surveys, the boundary, lithology, structure of the strata, and characteristics of the landslide deposits were determined. A gently angled weak interlayer consisting of shale was the main factor contributing to the occurrence of the Lamuajue landslide. The deposition area can be divided into three zones: zone A is an avalanche deposition area mainly composed of blocks, fragments, and debris with diameters ranging from 0.1 m to 3 m; zone B is a residual integrated rock mass deposition area with large blocks, boulders and "fake bedrock"; and zone C is a deposition zone of limestone blocks and fragments. Three types of failure mechanism were analyzed and combined to explain the Lamuajue landslide based on the features of the accumulation area. First, a shattering–sliding mechanism caused by earthquakes in zone A. Second, a sliding mechanism along the weak intercalation caused by gravity and water in zone B. Third, a shattering–ejection mechanism generated by earthquakes in zone C. The results provide a distinctive case for the study of gigantic landslides induced by earthquakes, which is very important for understanding and assessing ancient earthquake-induced landslides. |
| 语种 | 英语 |
| WOS记录号 | WOS:000425160200013 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20853]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2018_Vol15 No.2 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 |
| 推荐引用方式 GB/T 7714 | HUANG Chao,LI Yu-sheng,YI Shu-jian,et al. Characteristics and failure mechanism of an ancient earthquake-induced landslide with an extremely wide distribution area[J]. Journal of Mountain Science,2018,15(2):380-393. |
| APA | HUANG Chao,LI Yu-sheng,YI Shu-jian,LIU Kai,&WU Chun-hao.(2018).Characteristics and failure mechanism of an ancient earthquake-induced landslide with an extremely wide distribution area.Journal of Mountain Science,15(2),380-393. |
| MLA | HUANG Chao,et al."Characteristics and failure mechanism of an ancient earthquake-induced landslide with an extremely wide distribution area".Journal of Mountain Science 15.2(2018):380-393. |
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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