A vector sum analysis method for stability evolution of expansive soil slope considering shear zone damage softening
文献类型：期刊论文
| 作者 | Yan, Junbiao1,2; Kong, Lingwei1,2; Chen, Cheng1,2; Guo, Mingwei1,2 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 16期号:9页码:3746-3759 |
| 关键词 | Expansive soil slope Stability analysis Ring shear test Vector sum method Damage model Strain softening |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2024.04.009 |
| 英文摘要 | Slope stability analysis is a classical mechanical problem in geotechnical engineering and engineering geology. It is of great significance to study the stability evolution of expansive soil slopes for engineering construction in expansive soil areas. Most of the existing studies evaluate the slope stability by analyzing the limit equilibrium state of the slope, and the analysis method for the stability evolution considering the damage softening of the shear zone is lacking. In this study, the large deformation shear mechanical behavior of expansive soil was investigated by ring shear test. The damage softening characteristic of expansive soil in the shear zone was analyzed, and a shear damage model reflecting the damage softening behavior of expansive soil was derived based on the damage theory. Finally, by skillfully combining the vector sum method and the shear damage model, an analysis method for the stability evolution of the expansive soil slope considering the shear zone damage softening was proposed. The results show that the shear zone subjected to large displacement shear deformation exhibits an obvious damage softening phenomenon. The damage variable equation based on the logistic function can be well used to describe the shear damage characteristics of expansive soil, and the proposed shear damage model is in good agreement with the ring shear test results. The vector sum method considering the damage softening behavior of the shear zone can be well applied to analyze the stability evolution characteristics of the expansive soil slope. The stability factor of the expansive soil slope decreases with the increase of shear displacement, showing an obvious progressive failure behavior. (c) 2024 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. |
| 资助项目 | National Key Research and Development Program of China[2019YFC1509901] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001317456700001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42567]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Kong, Lingwei |
| 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 | Yan, Junbiao,Kong, Lingwei,Chen, Cheng,et al. A vector sum analysis method for stability evolution of expansive soil slope considering shear zone damage softening[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2024,16(9):3746-3759. |
| APA | Yan, Junbiao,Kong, Lingwei,Chen, Cheng,&Guo, Mingwei.(2024).A vector sum analysis method for stability evolution of expansive soil slope considering shear zone damage softening.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,16(9),3746-3759. |
| MLA | Yan, Junbiao,et al."A vector sum analysis method for stability evolution of expansive soil slope considering shear zone damage softening".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 16.9(2024):3746-3759. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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