Small-Strain Stiffness Model of Shear-Zone Soil in a Reactivated Slow-Moving Landslide
文献类型：期刊论文
| 作者 | Wang, Jincheng2; Cui, Deshan3; Hu, Xinli3; Chen, Qiong3; Chen, Juxiang1; Wang, Jinge4 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 25期号:2页码:18 |
| 关键词 | Slow-moving landslide Shear-zone soil Hardening soil (HS)-Small model Small-strain stiffness Stiffness parameters |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-10387 |
| 英文摘要 | Many slow-moving landslides with pre-existing shear zones exist in the Three Gorges Reservoir (TGR) region. In response to dynamics such as water-level fluctuations, shear-zone soil undergoes repeated small deformations, which sometimes result in slow-moving landslides that accelerate rapidly and fail catastrophically. Therefore, investigating the nonlinear variation of the shear modulus of soil over different strain ranges, especially for small strains, which is not well studied, is important. This paper conducts a series of investigations on shear-zone soil to obtain parameters of the small-strain stiffness [hardening soil (HS)-Small] model, including consolidated drain triaxial unloading-reloading compression, bending elements, and resonant column tests. The parameters were used to analyze the strain and deformation of a reactivated slow-moving landslide in the TGR region through numerical analysis. Correspondingly, in situ deformation monitors carried out in the shear zone are reported. The results illustrate that most regions of the slow-moving landslide are in small-strain states, and the numerical results demonstrate that the HS-Small model shows better consistency for monitoring data than traditional models. Estimation methods for each parameter of the HS-Small model are recommended based on statistical analysis and additional small-strain stiffness tests. A small-strain stiffness prediction empirical formula of shear-zone soil is proposed. The findings demonstrate the potential of the HS-Small model for slow-moving landslides, and the recommended estimation method can be considered for parameter determination. |
| 资助项目 | National Key R&D Program of China[2023YFC3007002] ; National Natural Science Foundation of China[42277171] ; National Natural Science Foundation of China[41772304] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001378278900002 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43439]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Cui, Deshan |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China 3.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 4.China Univ Geosci, Three Gorges Res Ctr Geohazards, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jincheng,Cui, Deshan,Hu, Xinli,et al. Small-Strain Stiffness Model of Shear-Zone Soil in a Reactivated Slow-Moving Landslide[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2025,25(2):18. |
| APA | Wang, Jincheng,Cui, Deshan,Hu, Xinli,Chen, Qiong,Chen, Juxiang,&Wang, Jinge.(2025).Small-Strain Stiffness Model of Shear-Zone Soil in a Reactivated Slow-Moving Landslide.INTERNATIONAL JOURNAL OF GEOMECHANICS,25(2),18. |
| MLA | Wang, Jincheng,et al."Small-Strain Stiffness Model of Shear-Zone Soil in a Reactivated Slow-Moving Landslide".INTERNATIONAL JOURNAL OF GEOMECHANICS 25.2(2025):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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