Shape Characteristics of Coral Sand from the South China Sea
文献类型：期刊论文
| 作者 | Wang, Xing2; Wu, Yang2,3; Cui, Jie2,3; Zhu, Chang-Qi1; Wang, Xin-Zhi1 |
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 8期号:10页码:24 |
| 关键词 | coral sand quartz sand particle shape particle size bulk density digital image analysis |
| DOI | 10.3390/jmse8100803 |
| 英文摘要 | The particle shape of coral sand is a crucial factor that affects its accumulation characteristics. Two-dimensional particle images of coral sand with different particle sizes were obtained through optical imaging, and the basic size parameters of particles were measured by digital image processing. The particle shape parameters were created, and on this basis, the variation of shape parameters with size, the distribution characteristics, and the sensitivity of shape parameters were analyzed by mathematical statistics and the fractal theory. In addition, a comparative analysis was conducted for the particle shape and bulk density of coral sand and quartz sand with the same particle size. The results show that (1) for coral sand with particle size ranging from 0.5 to 5.0 mm, as the particle size augments, its overall profile coefficient grows, while the flatness, angularity, and roughness diminish and the particle shape deviates more from the regular circle. (2) The shape of coral sand particles exhibits good fractal characteristics, and the particle shape gets more complex as the particle size grows as evidenced by the fact that the fractal dimension enlarges. (3) All the shape parameters obey a skewed distribution. Concerning the sensitivity to the change in particle shape, the flatness occupies the first place, the overall profile coefficient and angularity come second, and the roughness ranks third, accordingly. It is suggested that flatness should be preferred as the evaluation parameter of the particle shape. (4) Compared with that of quartz sand, the particle shape of coral sand is more irregular, and the intergranular pores are larger under the same accumulation conditions, which is the primary reason why the specific gravity of coral sand is greater than that of quartz sand while the bulk density is smaller than that of quartz sand. |
| 资助项目 | Consultative Project by Chinese Academy of Engineering[2019-XZ-18] ; National Natural Science Foundation of China[41877271] ; National Natural Science Foundation of China[51908153] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13010301] ; Guangzhou City Technology and Science Program[201904010278] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000586875100001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25069]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wu, Yang; Cui, Jie |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geotech Mech & Engn, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China 2.Guangzhou Univ, Sch Civil Engn, Guangzhou 510006, Peoples R China 3.Guangzhou Univ, Guangdong Prov Engn & Technol Res Ctr Geostruct S, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xing,Wu, Yang,Cui, Jie,et al. Shape Characteristics of Coral Sand from the South China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2020,8(10):24. |
| APA | Wang, Xing,Wu, Yang,Cui, Jie,Zhu, Chang-Qi,&Wang, Xin-Zhi.(2020).Shape Characteristics of Coral Sand from the South China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,8(10),24. |
| MLA | Wang, Xing,et al."Shape Characteristics of Coral Sand from the South China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 8.10(2020):24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。