Characteristics of wetting behavior under unloading in natural granite residual soil
文献类型：期刊论文
| 作者 | Yin, Song2; Huang, Jianing2; Li, Xinming2; Sun, Yuzhou2; Li, Yuru2; Zhang, Xianwei1 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2025-02-28 |
| 卷号 | 15期号:1页码:20 |
| 关键词 | Granite residual soil
Unloading
|
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-025-91749-8 |
| 英文摘要 | Excavation of foundation pits induces stress release in the soil, leading to deformation driven by the redistribution of internal stresses and particle adjustment. Rainfall infiltration further increases soil water content, weakening particle bonding through the dissolution of cementing agents, and inducing additional wetting deformation. However, there has only been limited experimental research examining the deformation behavior of soil under the coupled effects of unloading and wetting, especially in water-rich excavation conditions, where these factors interact dynamically. This study systematically investigates the coupled effects of unloading and wetting on the deformation behavior of natural granite residual soil (GRS) through triaxial tests. The results reveal that the interaction between unloading and wetting amplifies soil deformation, with significant non-linear dependencies on confining pressure and saturation levels. The stress-strain curves of natural GRS under unloading path exhibit strain-hardening behavior, and the vertical wetting deformation decreases with increasing saturation. Furthermore, the study identifies pronounced anisotropic wetting deformation, with tensile wetting deformation significantly exceeding compressive wetting deformation under equivalent stress states. This anisotropy diminishes with increasing confining pressure, highlighting the stress-dependency of wetting deformation behavior. The hyperbolic model shows a larger wetting deformation than the linear model, underscoring its practical significance in designing safer excavation strategies under coupled unloading and wetting conditions. These findings provide a foundation for improving deformation prediction and risk management in geotechnical engineering. |
| 资助项目 | National Natural Science Foundation of China[51709290] ; National Natural Science Foundation of China[242102320294] ; Key Scientific and Technological Project of Henan Province[GG202418] ; Zhongyuan University of Technology[SKLGME022027] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001435277400016 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36730]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Jianing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Zhongyuan Univ Technol, Sch Civil Engn & Architecture, Zhengzhou 450007, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Song,Huang, Jianing,Li, Xinming,et al. Characteristics of wetting behavior under unloading in natural granite residual soil[J]. SCIENTIFIC REPORTS,2025,15(1):20. |
| APA | Yin, Song,Huang, Jianing,Li, Xinming,Sun, Yuzhou,Li, Yuru,&Zhang, Xianwei.(2025).Characteristics of wetting behavior under unloading in natural granite residual soil.SCIENTIFIC REPORTS,15(1),20. |
| MLA | Yin, Song,et al."Characteristics of wetting behavior under unloading in natural granite residual soil".SCIENTIFIC REPORTS 15.1(2025):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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