Effects of loading paths and initial densities on mechanical response and gradation evolution of calcareous sand
文献类型：期刊论文
| 作者 | Chen, Jiarui6; Tang, Yaolan5; Ye, Jianhong4; Zhang, Chunshun3,6; Lin, Zhenghong6; Li, Congying2; Wei, Wei6; Dong, Jie1 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2025-02-21 |
| 卷号 | 346页码:24 |
| 关键词 | Calcareous sand Triaxial tests Loading path Initial density Breakage evolution model Strength and deformation |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2025.107908 |
| 英文摘要 | Calcareous sand, a distinctive granular material in geotechnical engineering, has garnered significant interest due to its irregular particle shapes, internal porosity, susceptibility to breakage, and critical role in island and offshore construction. Despite its importance, the influence of loading paths on its mechanical behavior and particle breakage remains underexplored. This study addresses this gap through an extensive experimental program, including isotropic consolidation and both drained and undrained triaxial compression tests, systematically varying loading paths and initial densities. The findings demonstrate that the strength and deformation characteristics of calcareous sand are profoundly affected by loading paths, initial densities, and particle breakage. A novel breakage evolution model is proposed, effectively capturing gradation changes under diverse testing conditions. Furthermore, the study quantifies the impacts of these factors on critical mechanical properties, including peak friction angle, dilatancy, secant modulus, and critical state parameters. These results provide a robust theoretical foundation for the development of constitutive models that integrate particle breakage and initial density effects. The insights are essential for optimizing geotechnical designs, enhancing stability, and improving infrastructure reliability in coastal and marine environments, particularly in island and reef development projects. |
| 资助项目 | National Natural Science Foundation of China, NSFC[52278367] ; Fundamental Research Funds for the Central Uni-versities[2042024kf0032] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001400785200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37235]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Chunshun |
| 作者单位 | 1.Wuhan Univ, Sch Remote Sensing & Informat Engn, Wuhan 430079, Hubei, Peoples R China 2.Univ Newcastle, Sch Engn, Callaghan, NSW 2308, Australia 3.Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 5.Monash Univ, Dept Civil Engn, Melbourne, Vic 3800, Australia 6.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jiarui,Tang, Yaolan,Ye, Jianhong,et al. Effects of loading paths and initial densities on mechanical response and gradation evolution of calcareous sand[J]. ENGINEERING GEOLOGY,2025,346:24. |
| APA | Chen, Jiarui.,Tang, Yaolan.,Ye, Jianhong.,Zhang, Chunshun.,Lin, Zhenghong.,...&Dong, Jie.(2025).Effects of loading paths and initial densities on mechanical response and gradation evolution of calcareous sand.ENGINEERING GEOLOGY,346,24. |
| MLA | Chen, Jiarui,et al."Effects of loading paths and initial densities on mechanical response and gradation evolution of calcareous sand".ENGINEERING GEOLOGY 346(2025):24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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