Particle Breakage Characteristics of Marine Coral Sand under Cyclic Shear Loading Conditions
文献类型：期刊论文
| 作者 | Xin, Li2,3; Zhang, Yi1; Ma, Xiaolong2; Sun, Xiang2; Wei, Houzhen2 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 24期号:12页码:12 |
| 关键词 | Coral sand Cyclic simple shear test Particle breakage Particle morphology Input energy Cyclic loads |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-10166 |
| 英文摘要 | Coral sand is widely distributed in offshore oil and gas basins, and beneath the foundations of offshore wind turbines that are exposed to persistent cyclic loads, including wind, ocean waves, and seismic activity. Under these cyclic loads, coral sand is prone to particle breakage, resulting in unexpected differential settlements that potentially threaten the security of offshore structures. A series of cyclic simple shear tests were conducted in this study to investigate the process of coral sand particle breakage during cyclic loading. The findings revealed that the shear stress and shear modulus of coral sand significantly increase after the first cycle, and then increase moderately with the number of loading cycles. Particle breakage becomes more severe as the cyclic shear strain amplitude, vertical stress, and total cycles increase. There is a critical shear rate that induces significant particle breakage, leading to a more regular particle shape in coral sand. The detachment interlocking and mechanical grinding models are proposed for analyzing the mechanism of the particle breakage in coral sand under cyclic loading. The level of input energy that controls the particle breakage in coral sand is set based on analysis of the energy dissipation. |
| 资助项目 | Key Technologies R&D Program of Guangxi[GUIKE AB22080073] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001336497200005 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43153]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wei, Houzhen |
| 作者单位 | 1.China Shipbuilding NDRI Engn Co Ltd, Shanghai 200090, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Dept Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Li,Zhang, Yi,Ma, Xiaolong,et al. Particle Breakage Characteristics of Marine Coral Sand under Cyclic Shear Loading Conditions[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2024,24(12):12. |
| APA | Xin, Li,Zhang, Yi,Ma, Xiaolong,Sun, Xiang,&Wei, Houzhen.(2024).Particle Breakage Characteristics of Marine Coral Sand under Cyclic Shear Loading Conditions.INTERNATIONAL JOURNAL OF GEOMECHANICS,24(12),12. |
| MLA | Xin, Li,et al."Particle Breakage Characteristics of Marine Coral Sand under Cyclic Shear Loading Conditions".INTERNATIONAL JOURNAL OF GEOMECHANICS 24.12(2024):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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