Reactivation of a huge ancient landslide by surface water infiltration
文献类型：期刊论文
| 作者 | Tu Guo-xiang; Huang Da; Deng Hui |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 16期号:4页码:806-820 |
| 关键词 | Landslide Rainfall infiltration Soil stability Finite-element-method Leakage of diversion ditch |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-5315-5 |
| 文献子类 | Article |
| 英文摘要 | An ancient landslide, situated in Deqin County, Yunnan Province, China, was used to investigate the reactivation by water infiltration. This study considers the infiltration process and landslide stability using finite-element method (FEM)-based models. The results show that the reactivation of old landslide deposit was triggered by the long-term leakage of diversion ditch before October 2012, and the reactivation was triggered again by the intense rainfall on 7-9 October 2012. The old cracks, which formed in the earlier reactivation of landslide, played a key role for the rainfall infiltration. They offered a preferential path for much more rainfall to infiltrate fast into deep soil, and caused wetting front to move down faster in landslide. The old slip zone with lower permeability was another important factor to cause the infiltrated water to accumulate and form a high pore water pressure above slip zone. Then the high pore water pressure decreased the shear strength of slip zone and triggered the reactivation of the old landslide deposit again. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000464752500007 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46471]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.4 |
| 推荐引用方式 GB/T 7714 | Tu Guo-xiang,Huang Da,Deng Hui. Reactivation of a huge ancient landslide by surface water infiltration[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(4):806-820. |
| APA | Tu Guo-xiang,Huang Da,&Deng Hui.(2019).Reactivation of a huge ancient landslide by surface water infiltration.JOURNAL OF MOUNTAIN SCIENCE,16(4),806-820. |
| MLA | Tu Guo-xiang,et al."Reactivation of a huge ancient landslide by surface water infiltration".JOURNAL OF MOUNTAIN SCIENCE 16.4(2019):806-820. |
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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