Phreatic surface calculation and stability analysis of three-dimensional slopes under rainfall infiltration
文献类型：期刊论文
| 作者 | Wang, Jiao1,2; Wang, Zhangxing1,2; Sun, Guanhua1,2 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 83期号:2页码:15 |
| 关键词 | Three-dimensional slopes Phreatic surface Stability analysis Rainfall infiltration |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-024-03542-y |
| 英文摘要 | Groundwater fluctuations are an important factor in the occurrence of landslides. Rainfall or changes in reservoir levels can cause fluctuations in groundwater within the slope, making the slope susceptible to landslides. This paper proposes a simple method that directly correlates groundwater level and rainfall, enabling the prediction of changes in the three-dimensional (3D) phreatic surface under rainfall infiltration. Based on the solved phreatic surface, we derive the seepage force and the normal stress expression on the sliding surface. A strict overall analysis method is proposed for solving the safety factor of the slope subjected to rainfall. The reliability of the proposed method is established through verification against various scenarios defined by a classic slope model. Furthermore, we investigate the variations in the phreatic surface and the evolution of safety conditions under rainfall infiltration for a project slope located in the Three Gorges Reservoir area. The results demonstrate that the rise in groundwater level due to rainfall infiltration is small and consistent relative to the entire landslide body. The magnitude of groundwater level rise is directly proportional to precipitation volume, while soil porosity above phreatic surface exerts a greater influence on safety factor than permeability coefficient and saturation. |
| 资助项目 | National Natural Science Foundation of China[11972043] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001145244100001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40349]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Sun, Guanhua |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jiao,Wang, Zhangxing,Sun, Guanhua. Phreatic surface calculation and stability analysis of three-dimensional slopes under rainfall infiltration[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2024,83(2):15. |
| APA | Wang, Jiao,Wang, Zhangxing,&Sun, Guanhua.(2024).Phreatic surface calculation and stability analysis of three-dimensional slopes under rainfall infiltration.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,83(2),15. |
| MLA | Wang, Jiao,et al."Phreatic surface calculation and stability analysis of three-dimensional slopes under rainfall infiltration".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 83.2(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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