Effect of initial fabric from sample preparation on the mechanical behaviour of a carbonate sand from the South China Sea
文献类型：期刊论文
| 作者 | Yao, Ting2; Li, Wei1 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2023-12-05 |
| 卷号 | 326页码:12 |
| 关键词 | Carbonate sand Fabric Sample preparation method Particle breakage Friction angle Critical state |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2023.107311 |
| 英文摘要 | Mega reclamation projects have been undertaken on the coral reefs. However, research on the geotechnical properties of the hydraulically filled carbonate sand is limited, and the impact of the initial fabrics from different densification methods on the mechanical behaviour of carbonate sand remains unclear. In this work, a systematic experimental investigation on the effect of initial fabric induced by sample preparation method on the mechanical behaviour of carbonate sand has been performed. Four sample preparation methods, including moist tamping, vibration, dry pluviation and water pluviation were adopted to reconstitute samples with distinct fabrics. It is found that, for a single preparation method, the particle breakage as well as the peak friction angle of carbonate sand is affected by the drainage condition significantly, and both the critical state friction angle (phi'cs) and the compressibility (lambda) of carbonate sand are strongly stress dependent. For samples prepared by different methods, an obvious divergence of critical state points can be seen in the specific volume and mean effective stress plane at low stress levels. The dry pluviation samples show the lowest phi'cs and highest lambda, due to the highest anisotropy. In contrast, moist tamping samples give the highest phi'cs and lowest lambda, due to the most isotropic fabric. |
| 资助项目 | National Natural Science Foundation of China[42177154] ; National Natural Science Foundation of China[42102327] ; Natural Science Foundation of Hubei Province, China[2022CFB422] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001091007400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39794]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Wei |
| 作者单位 | 1.China Univ Geosci, Fac Engn, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Ting,Li, Wei. Effect of initial fabric from sample preparation on the mechanical behaviour of a carbonate sand from the South China Sea[J]. ENGINEERING GEOLOGY,2023,326:12. |
| APA | Yao, Ting,&Li, Wei.(2023).Effect of initial fabric from sample preparation on the mechanical behaviour of a carbonate sand from the South China Sea.ENGINEERING GEOLOGY,326,12. |
| MLA | Yao, Ting,et al."Effect of initial fabric from sample preparation on the mechanical behaviour of a carbonate sand from the South China Sea".ENGINEERING GEOLOGY 326(2023):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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