Fractal characteristics of particle breakage on the coral sands-structure interface during ring shear tests
文献类型：期刊论文
| 作者 | Wei, Houzhen1; Xin, Li1,2; Ruan, Hang1,2; Yao, Qi3; Ma, Xiaolong1; Xu, Rui1,2 |
| 刊名 | MARINE GEOPHYSICAL RESEARCH
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 45期号:2页码:13 |
| 关键词 | Coral sands Contact interface Fractal theory Self-similarity Particle breakage |
| ISSN号 | 0025-3235 |
| DOI | 10.1007/s11001-024-09543-6 |
| 英文摘要 | Particle breakage at coral sands-structure interface is common in marine geological environments and is critical to the stability of geotechnical structures. However, due to the knowledge gap regarding the relationship between structure roughness and coral sand particle breakage, previous studies have not provided a clear understanding of this phenomenon. To address this gap, we conducted ring shear tests to investigate the evolution of the fractal dimension of particle breakage and its dependence on structure surface roughness and vertical stress based on fractal theory. The results show that both the roughness of the steel plate simulating the structure surface in the ring shear test and the particle size of coral sand have significant impacts on the evolutions of particle breakage and morphology at the contact interface. In detail, the particle size distributions (PSDs) of coral sands after shearing have obvious self-similarity and converge to the limit distribution state, especially when the sands contain more large particles. When the steel plate is smooth, the fractal dimension of the broken coral sand is relatively low, which indicates an early stage of fractal dimension development. Moreover, the relationship between the fractal dimension and vertical stress exerted on a rough steel plate can be approximately described using a second-order polynomial function. Moreover, there exists a critical vertical stress that corresponds to the maximum fractal dimension for each kind of coral sand in our tests. The particle breakage rates of coral sand samples on smooth steel plates are substantially lower than those on rough steel plates. |
| 资助项目 | Key Technologies R&D Program of Guangxi[GUIKE AB22080073] ; State Key Laboratory of Geomechanics and Geotechnical Engineering |
| WOS研究方向 | Geochemistry & Geophysics ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001197713700001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40964]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ma, Xiaolong |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Dept Engn Sci, Beijing 100049, Peoples R China 3.North China Univ Water Resources & Elect Power, Dept Geosci & Engn, Zhengzhou 450046, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Houzhen,Xin, Li,Ruan, Hang,et al. Fractal characteristics of particle breakage on the coral sands-structure interface during ring shear tests[J]. MARINE GEOPHYSICAL RESEARCH,2024,45(2):13. |
| APA | Wei, Houzhen,Xin, Li,Ruan, Hang,Yao, Qi,Ma, Xiaolong,&Xu, Rui.(2024).Fractal characteristics of particle breakage on the coral sands-structure interface during ring shear tests.MARINE GEOPHYSICAL RESEARCH,45(2),13. |
| MLA | Wei, Houzhen,et al."Fractal characteristics of particle breakage on the coral sands-structure interface during ring shear tests".MARINE GEOPHYSICAL RESEARCH 45.2(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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