Strain localization and shear band evolution of CO2-bearing sediments
文献类型：期刊论文
| 作者 | Zhang, Fan2; Shao, Longtan2,3; Guo, Xiaoxia2,3; Chen, Zhixiang1 |
| 刊名 | MARINE GEORESOURCES & GEOTECHNOLOGY
 |
| 出版日期 | 2024-10-28 |
| 页码 | 10 |
| 关键词 | CO2-bearing sediments strain localization shear band digital image technology |
| ISSN号 | 1064-119X |
| DOI | 10.1080/1064119X.2024.2423269 |
| 英文摘要 | The mechanical behavior of carbon dioxide (CO2)-containing sediments is crucial for the implementation of carbon dioxide storage in the ocean. Current research overlooks the effects of non-uniform deformation on the evaluation of mechanical properties in triaxial tests. In this study, a triaxial testing system equipped with digital image technology of the specimen global surface was used to test the triaxial behaviors of Bohai sand containing CO2 - CO2 hydrates. On this basis, the strain localization, shear band formation, and evolution behavior of the CO2-bearing sediments were analyzed, according to the surface deformation of the triaxial specimens. The results show that the mean values of axial strain, lateral strain, and volumetric strain of CDBS specimens are higher than the global values. The local destructive stress and the local effective internal friction angle phi of the specimens are smaller than the global values. The sample's shear bands may be generated multiple times and are negatively correlated with the mean stress sigma m. This study concluded that the global stress-strain curves overestimated the strength of the CDBS samples and underestimated the deformation of the samples. This was due to the inhomogeneous deformation of the samples. |
| 资助项目 | National Natural Science Foundation of China[52079018] ; International Cooperation Fund Project of DBJI[ICR2305] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME022005] |
| WOS研究方向 | Engineering ; Oceanography ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001349928700001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43087]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shao, Longtan |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 2.Dalian Univ Technol, Sch Mech & Aerosp Engn, Dalian, Liaoning, Peoples R China 3.Dalian Univ Technol, State Key Lab Struct Anal Optimizat & CAE Software, Dalian, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fan,Shao, Longtan,Guo, Xiaoxia,et al. Strain localization and shear band evolution of CO2-bearing sediments[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2024:10. |
| APA | Zhang, Fan,Shao, Longtan,Guo, Xiaoxia,&Chen, Zhixiang.(2024).Strain localization and shear band evolution of CO2-bearing sediments.MARINE GEORESOURCES & GEOTECHNOLOGY,10. |
| MLA | Zhang, Fan,et al."Strain localization and shear band evolution of CO2-bearing sediments".MARINE GEORESOURCES & GEOTECHNOLOGY (2024):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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