Analysis of deformation mechanism of rainfall-induced landslide in the Three Gorges Reservoir Area: Piansongshu landslide
文献类型：期刊论文
| 作者 | Wang, Hui3; Zou, Jianhua3; Wang, Xinghua3; Lv, Peng2; Tan, Zefu3; Cheng, Longfei3; Wei, Qiang1; Qin, Binli3; Guo, Zhengchao3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 14期号:1页码:15 |
| 关键词 | Accumulation landslides Rainfall Deformation mechanism Stability evaluation |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-024-60590-w |
| 通讯作者 | Zou, Jianhua(zoujianhua@sanxiau.edu.cn) |
| 英文摘要 | The Three Gorges Reservoir Area (TGRA) is characterized by unique geological features that increase its susceptibility to landslides. These slopes are especially prone to destabilization when influenced by external triggers like rainfall. This research focuses on the Piansongshu landslide within the TGRA, aiming at unraveling the complex internal deformation mechanisms of landslides triggered by rainfall and providing critical insights for their prevention and mitigation. The study begins with on-site geological surveys to meticulously examine the macroscopic signs and mechanisms of deformation. It then utilizes the GeoStudio numerical simulation software to assess the landslide's stability, focusing on the changes in internal seepage fields and stability under various rainfall scenarios. Results indicate that continuous rainfall leads to the formation of a temporary saturation zone on the slope, which gradually deepens. In regions with more pronounced deformation, the infiltration line at the leading edge of accumulation notably protrudes towards the surface. Notably, the stability coefficient of the secondary shear surface of the landslide fluctuates more significantly than that of the primary sliding surface. Higher rainfall intensity and longer duration are positively correlated with a more pronounced decrease in stability coefficients. The impact on stability also varies across different rainfall patterns. As rainfall infiltrates over time, the slope's safety factor gradually decreases. This reduction continues even post-rainfall, indicating a delayed restoration period before stability returns to a safe level. These results yield valuable data for forecasting and mitigating landslides. |
| WOS关键词 | STABILITY ANALYSIS |
| 资助项目 | Natural Science Foundation of Chongqing Municipality[CSTB2023NSCQ-MSX0433] ; Natural Science Foundation of Chongqing Municipality[HZ2021012] ; Cooperation Program of Chongqing Municipal Education Commission and Chinese Academy Sciences[wzstc20230313] ; Science Technology Planning Project of WanZhou District, Chongqing |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001214888200007 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | Natural Science Foundation of Chongqing Municipality ; Natural Science Foundation of Chongqing Municipality ; Cooperation Program of Chongqing Municipal Education Commission and Chinese Academy Sciences ; Science Technology Planning Project of WanZhou District, Chongqing |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205662]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zou, Jianhua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Sichuan Geol Environm Survey & Res Ctr, Chengdu 610081, Peoples R China 3.Chongqing Three Gorges Univ, Sch Civil Engn, Chongqing 404020, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hui,Zou, Jianhua,Wang, Xinghua,et al. Analysis of deformation mechanism of rainfall-induced landslide in the Three Gorges Reservoir Area: Piansongshu landslide[J]. SCIENTIFIC REPORTS,2024,14(1):15. |
| APA | Wang, Hui.,Zou, Jianhua.,Wang, Xinghua.,Lv, Peng.,Tan, Zefu.,...&Guo, Zhengchao.(2024).Analysis of deformation mechanism of rainfall-induced landslide in the Three Gorges Reservoir Area: Piansongshu landslide.SCIENTIFIC REPORTS,14(1),15. |
| MLA | Wang, Hui,et al."Analysis of deformation mechanism of rainfall-induced landslide in the Three Gorges Reservoir Area: Piansongshu landslide".SCIENTIFIC REPORTS 14.1(2024):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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