Evolution of cracks in the shear bands of granite residual soil
文献类型：期刊论文
| 作者 | Li, Chengsheng2,3; Kong, Lingwei3; An, Ran1,3 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 14期号:6页码:1956 |
| 关键词 | Shear band Crack classification method Digital volume correlation (DVC) X-ray computed tomography (CT) Granite residual soil |
| ISSN号 | 1674-7755 |
| 英文摘要 | The evolution of shear bands and cracks plays an important role in landslides. However, there is no systematic method for classification of the cracks, which can be used to analyze the evolution of cracks in shear bands. In this study, X-ray computed tomography (CT) is used to observe the behavior of granite residual soil during a triaxial shear process. Based on the digital volume correlation (DVC) method, a crack classification method is established according to the connectivity characteristics of cracks before and after loading. Cracks are then divided into six classes: obsolete, brand-new, isolated, split, combined, and compound. With evolution of the shear bands, a large number of brand-new cracks accelerate the damages of materials at the mesoscale, resulting in a sharp decrease in strength. The volume of brand-new cracks increases rapidly with increasing axial strain, and their volume is greater than 50% when the strain reaches 12%, while the volume of compound cracks decreases from 54% to 21%. As cracks are the weakest areas in a material, brand-new cracks accelerate the development of shear bands. Finally, the coupling effect of shear bands and cracks destroys the soil strength. (C) 2022 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000891300600020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35223]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.College of Urban Construction, Wuhan University of Science and Technology, Wuhan, 430065, China 2.Department of Civil and Environmental Engineering, Shantou University, Shantou, 515063, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China |
| 推荐引用方式 GB/T 7714 | Li, Chengsheng,Kong, Lingwei,An, Ran. Evolution of cracks in the shear bands of granite residual soil[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2022,14(6):1956. |
| APA | Li, Chengsheng,Kong, Lingwei,&An, Ran.(2022).Evolution of cracks in the shear bands of granite residual soil.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,14(6),1956. |
| MLA | Li, Chengsheng,et al."Evolution of cracks in the shear bands of granite residual soil".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 14.6(2022):1956. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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