Compression responses and particle breakage of calcareous granular material in reclaimed islands
文献类型：期刊论文
| 作者 | Shen, Jianhua3; Chen, Xiang3; Wang, Xing1; Wang, Xinzhi3; Qin, Yue4; Wu, Hao2 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2023-03-15 |
| 卷号 | 418期号:-页码:- |
| 关键词 | Calcareous gravelly sand Compression behavior Particle size distribution Relative density Particle breakage |
| ISSN号 | 0032-5910 |
| 英文摘要 | Calcareous gravelly sand (CGS) is a highly compressible and easily breakable granular geomaterial widely used to fill the island reef foundation. In this study, a series of confined compression tests were conducted on CGS, and the particle breakage of CGS was quantitatively assessed. The results showed that the power function model was more suitable for describing the stress-strain relationship of CGS under confined compression than the hyperbolic and Gunary models. The yield stress of CGS was distributed within the range of 1.89-2.45 MPa, which was significantly smaller than that of terrigenous quartz sand. The compression modulus of CGS increased with increasing relative density (Dr); however, it first increased and then decreased with increasing nonuniform coefficient (Cu). The compression behaviors of CGS after the yield point were mainly determined by particle breakage. The CGS sample, which had experienced more serious particle breakage, was compressed to a more compact state under vertical stress. The relative breakage ratio of CGS decreased with increasing Dr, whereas it first increased and then decreased with increasing Cu. The changes in the fractal dimension and gradation parameters of CGS before and after testing were also evaluated. The particle breakage mechanism of CGS during confined compression was revealed based on the changes in the mass fraction of different particle groups before and after testing. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000964390200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35368]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Guangzhou University, Guangzhou 510006, China 2.School of Urban Construction, Wuhan University of Science and technology, Wuhan 430081, China 3.State Key Laboratory of Geotechnical Mechanics and Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China |
| 推荐引用方式 GB/T 7714 | Shen, Jianhua,Chen, Xiang,Wang, Xing,et al. Compression responses and particle breakage of calcareous granular material in reclaimed islands[J]. POWDER TECHNOLOGY,2023,418(-):-. |
| APA | Shen, Jianhua,Chen, Xiang,Wang, Xing,Wang, Xinzhi,Qin, Yue,&Wu, Hao.(2023).Compression responses and particle breakage of calcareous granular material in reclaimed islands.POWDER TECHNOLOGY,418(-),-. |
| MLA | Shen, Jianhua,et al."Compression responses and particle breakage of calcareous granular material in reclaimed islands".POWDER TECHNOLOGY 418.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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