Influence of Rainfall Conditions and Loading Modes on the Stability of Expansive Soil Cut Slopes: Insight from In Situ Borehole Shear Test
文献类型：期刊论文
| 作者 | Li, Jingjing3; Kong, Lingwei2; Jin, Lei3; Li, Xinming1,2 |
| 刊名 | WATER
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 17期号:5页码:17 |
| 关键词 | expansive soil borehole shear test slope stability rainfall loading mode |
| DOI | 10.3390/w17050694 |
| 英文摘要 | Given the frequent occurrence of expansive soil slope failures during rainy season, in situ borehole shear tests were conducted to investigate how loading-added modes and rainfall conditions affect the shear strength parameters of expansive soils. The results obtained were used to analyze an actual engineering project under various construction practices and depths of rainfall infiltration, with the goal of elucidating the mechanisms behind expansive soil landslides. The test results indicate that rainfall infiltration leads to a significant reduction in cohesive force, while the internal friction angle decreases slightly. Cohesive force increases linearly with greater preload pressures, whereas the internal friction angle decreases linearly as preload pressure increases. Numerical simulations revealed that rainfall-induced sliding occurs at shallow depths along a broken-line sliding surface. For unprotected expansive soil cut slopes, the safety factor experiences a sharp decline as the depth of rainfall infiltration increases. Timely support measures significantly enhance slope stability; however, the supporting load can mitigate the softening effect only up to a certain extent. Additionally, two methodologies for selecting preload pressures in practical engineering applications have been proposed. |
| 资助项目 | National Natural Science Foundation of China ; Henan Outstanding Youth Science Foundation[242300421153] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME022027] ; [12002121] ; [41430634] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001442261900001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36653]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jingjing |
| 作者单位 | 1.Zhongyuan Univ Technol, Sch Civil Engn & Architecture, Zhengzhou 450007, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Jiangsu Open Univ, Coll Civil Engn, Nanjing 210036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jingjing,Kong, Lingwei,Jin, Lei,et al. Influence of Rainfall Conditions and Loading Modes on the Stability of Expansive Soil Cut Slopes: Insight from In Situ Borehole Shear Test[J]. WATER,2025,17(5):17. |
| APA | Li, Jingjing,Kong, Lingwei,Jin, Lei,&Li, Xinming.(2025).Influence of Rainfall Conditions and Loading Modes on the Stability of Expansive Soil Cut Slopes: Insight from In Situ Borehole Shear Test.WATER,17(5),17. |
| MLA | Li, Jingjing,et al."Influence of Rainfall Conditions and Loading Modes on the Stability of Expansive Soil Cut Slopes: Insight from In Situ Borehole Shear Test".WATER 17.5(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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