Triaxial test on load-bear capacity of the vibro-compaction coral sand foundation in the South China Sea
文献类型：期刊论文
| 作者 | Qu, Ru2,3; Ma, Chenghao2,3; Liu, Haifeng2; Zhu, Changqi2; Hu, Tao1 |
| 刊名 | APPLIED OCEAN RESEARCH
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 153页码:13 |
| 关键词 | Vibro-compaction method Coral sand ground improvement Variable-density sample Friction angle Secant Young's modulus Particle breakage |
| ISSN号 | 0141-1187 |
| DOI | 10.1016/j.apor.2024.104321 |
| 英文摘要 | Vibro-compaction is the main improvement method for hydraulic reclamation coral sand sites. Currently, the load-bearing characteristics of coral sand composite foundation reinforced by vibro-compaction have not been clarified. This paper investigates strength characteristics of coral sand composite samples (core and shell) by artificially preparing radial variable-density coral sand composite samples and performing consolidated drained triaxial tests under different area replacement rates, core-shell density ratios, and confining pressures. The results of the study show that the contribution of the core gradually increases with the increasing area replacement rate. The peak strength and peak friction angle of samples also increase gradually, but the growth tendency gradually slows down. The stress concentration coefficient of sample core is variable and follows a development pattern of first increasing and then decreasing. The secant Young's modulus of composite samples increases in a power function type with the increase of area replacement rate. The particle breakage of samples is mainly the rupture and abrasion of the 0.5-1 mm and 0.1-0.25 mm particle groups that serve as fillers. The research results can provide technical support for coral reef engineering construction. |
| 资助项目 | National Key R & D Program of China[2021YFC3100604] ; National Natural Science Foundation of China[42277185] ; National Natural Science Foundation of China[42107202] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001358591500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43193]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Haifeng |
| 作者单位 | 1.Guilin Univ Technol, Coll Civil Engn & Architecture, Guilin 541004, Guangxi, 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, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Ru,Ma, Chenghao,Liu, Haifeng,et al. Triaxial test on load-bear capacity of the vibro-compaction coral sand foundation in the South China Sea[J]. APPLIED OCEAN RESEARCH,2024,153:13. |
| APA | Qu, Ru,Ma, Chenghao,Liu, Haifeng,Zhu, Changqi,&Hu, Tao.(2024).Triaxial test on load-bear capacity of the vibro-compaction coral sand foundation in the South China Sea.APPLIED OCEAN RESEARCH,153,13. |
| MLA | Qu, Ru,et al."Triaxial test on load-bear capacity of the vibro-compaction coral sand foundation in the South China Sea".APPLIED OCEAN RESEARCH 153(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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