Dilatancy of the foundation filling material of island-reefs in the South China Sea
文献类型：期刊论文
| 作者 | Wang, Xing3,4; Shan, Yi3,4; Cui, Jie3,4; Zhong, Yu2; Shen, Jian-Hua1; Wang, Xin-Zhi1; Zhu, Chang-Qi1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-03-14 |
| 卷号 | 323页码:16 |
| 关键词 | Calcareous gravelly sand Dilatancy Phase-transition stress ratio Failure dilatancy ratio Relative density Effective confining pressure |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2022.126524 |
| 英文摘要 | Calcareous gravelly sand (CGS) is the primary building material used in the foundation filling of island-reefs in the South China Sea. In this study, multiple consolidation-drained triaxial shear tests were conducted on CGS, in order to reveal the effects of relative density (Dr) and effective confining pressure (sigma '(3)) on the CGS dilatancy. The applicability of classical dilatancy equations to CGS was tested. An empirical dilatancy equation applicable to calcareous sand was proposed and the rationality of this dilatancy equation was validated. According to the results: (I) Phase-transition stress ratio (eta(p)) and failure dilatancy ratio (d(f)) are important indices for assessing the CGS dilatancy. Physical models were built to predict the eta(p) and d(f) of CGS based on its Dr and sigma '(3), respectively. (II) The dilatancy equation of the modified Cam-clay model could not reflect the CGS dilatancy. Rowe's dilatancy equation could reflect the CGS dilatancy to some extent, but it underestimated the CGS dilatancy when sigma '(3) = 50 kPa and overestimated the CGS dilatancy when sigma '(3) = 400 kPa. (III) A good linear relationship was identified between dilatancy ratio and stress ratio-related parameter ((eta(2)(f)-eta(2))eta(0.5)). Therefore, the empirical dilatancy equation built on this basis is highly applicable to calcareous sand. |
| 资助项目 | National Key Research and Development Program of China[2017YFC1500400] ; Major International (Regional) Joint Research Project[52020105002] ; China Postdoctoral Science Foundation[2020M682653] ; China Postdoctoral Science Foundation[2021T140142] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515110663] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000751109100004 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34442]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shan, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geotech Mech & Engn, Wuhan 430071, Peoples R China 2.Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Peoples R China 3.Guangzhou Univ, Earthquake Engn Res & Test Ctr, Guangzhou 510405, Peoples R China 4.Guangzhou Univ, Sch Civil Engn, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xing,Shan, Yi,Cui, Jie,et al. Dilatancy of the foundation filling material of island-reefs in the South China Sea[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,323:16. |
| APA | Wang, Xing.,Shan, Yi.,Cui, Jie.,Zhong, Yu.,Shen, Jian-Hua.,...&Zhu, Chang-Qi.(2022).Dilatancy of the foundation filling material of island-reefs in the South China Sea.CONSTRUCTION AND BUILDING MATERIALS,323,16. |
| MLA | Wang, Xing,et al."Dilatancy of the foundation filling material of island-reefs in the South China Sea".CONSTRUCTION AND BUILDING MATERIALS 323(2022):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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