Isotropic compression and triaxial shear characteristics of coral sand under high confining pressure and related particle breakage
文献类型：期刊论文
| 作者 | Ye, Jianhong1,2,3; Gao, Ran2,4 |
| 刊名 | GEOTECHNIQUE
 |
| 出版日期 | 2024-11-23 |
| 页码 | 49 |
| 关键词 | coral sand triaxial test cyclic triaxial shear isotropic compression particle breakage high confining pressure south china sea coral reef laboratory tests calcareous soils |
| ISSN号 | 0016-8505 |
| DOI | 10.1680/jgeot.24.01260 |
| 英文摘要 | It has been recognized that coral sand shares some common characteristics that all granular materials deserve, but also exhibits some unique characteristics. This study utilized coral sand extracted from a reclaimed territory on a natural coral reef in the South China Sea (SCS) as the experimental material, a suite of tests including monotonic and cyclic triaxial shear (drained or undrained), and drained isotropic compression were performed at high confining pressure (3, 5, 10 MPa, respectively). The test results show that it is difficult for coral sand to reach the strictly defined critical state under high confining pressure. Under the drained condition, specimens constantly contracted and exhibited significant particle breakage. During the isotropic compression, the growth rate of plastic volumetric strain of coral sand visibly decreases as the confining pressure increases. Furthermore, there is a direct correlation between the elastic bulk modulus of coral sand and the level of confining pressure. The quantification analysis of coral sand particle breakage under high confining pressure is conducted, and the relationship between particle breakage and input plastic work is established. This study furnishes robust experimental evidence that is crucial for the subsequent formulation of a constitutive model for coral sand that incorporates considerations of particle breakage. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001367970200001 |
| 出版者 | EMERALD GROUP PUBLISHING LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43299]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ye, Jianhong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 4.CCCC Second Harbour Engn CO LTD, Wuhan 430040, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Jianhong,Gao, Ran. Isotropic compression and triaxial shear characteristics of coral sand under high confining pressure and related particle breakage[J]. GEOTECHNIQUE,2024:49. |
| APA | Ye, Jianhong,&Gao, Ran.(2024).Isotropic compression and triaxial shear characteristics of coral sand under high confining pressure and related particle breakage.GEOTECHNIQUE,49. |
| MLA | Ye, Jianhong,et al."Isotropic compression and triaxial shear characteristics of coral sand under high confining pressure and related particle breakage".GEOTECHNIQUE (2024):49. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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