Experimental study on the influence of particle morphology on compression characteristics of coral sand in South China Sea
文献类型：期刊论文
| 作者 | Qu, Ru1,2; Ma, Cheng-hao1,2; Zhu, Chang-qi1; Liu, Hai-feng1 |
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2024-11-15 |
| 卷号 | 312页码:11 |
| 关键词 | South China Sea Coral sand SAGI Yield point Compression index Particle breakage |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2024.119339 |
| 英文摘要 | Particle morphology is an important physical parameter that influences the engineering properties of coral sand, especially its compressibility. According to the quantitative analysis of particle morphology via the dynamic image analysis technology, a series of one-dimensional compression tests on coral sand and quartz sand with different particle morphology and densities were performed to reveal the effect of particle morphology on the compressibility of coral sand. The results demonstrated that the morphology of particles can be quantified using the shape-angularity group indicator (SAGI), whereas the SAGI of coral sand was greater than that of quartz sand. Coral sand exhibited a yield stress ranging from 1 to 2.5 MPa, and compressive deformations in both coral sand and quartz sand were dominated by irreversible plastic deformation. As the SAGI and densification increased, the number of particle coordination increased while the contact stress between grains decreased, which caused the yield stress of coral sand specimens to increase as well as the compression index and particle crushing rate to decrease. The SAGI of quartz sand particles remained relatively unchanged while that of coral sand particles gradually decreased after crushing, i.e., the coral sand particles developed a more regular shape after crushing. |
| 资助项目 | National Natural Science Foundation of China[42277185] ; National Natural Science Foundation of China[42107202] ; Natural Science Foundation of Hubei Province of China[2020CFB243] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001325074400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42707]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Qu, Ru |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Ru,Ma, Cheng-hao,Zhu, Chang-qi,et al. Experimental study on the influence of particle morphology on compression characteristics of coral sand in South China Sea[J]. OCEAN ENGINEERING,2024,312:11. |
| APA | Qu, Ru,Ma, Cheng-hao,Zhu, Chang-qi,&Liu, Hai-feng.(2024).Experimental study on the influence of particle morphology on compression characteristics of coral sand in South China Sea.OCEAN ENGINEERING,312,11. |
| MLA | Qu, Ru,et al."Experimental study on the influence of particle morphology on compression characteristics of coral sand in South China Sea".OCEAN ENGINEERING 312(2024):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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