Damping ratio evolution of saturated Ningbo clays under cyclic confining pressure
文献类型：期刊论文
| 作者 | Huang, Juehao1,4,5,6; Chen, Jian1,4,5,6; Ke, Wenhui3; Zhong, Yu2; Lu, Yuan1,6; Yi, Shun1,6 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 143页码:12 |
| 关键词 | Cyclic triaxial test Damping ratio Accumulated axial strain Cyclic stress ratio Effective consolidated confining pressure Loading frequency Cyclic confining pressure |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2021.106581 |
| 英文摘要 | The mechanical behaviours of soft clays under cyclic loading are not only related to loading parameters, but also the physical indices of soft clay. One-way cyclic triaxial tests with constant confining pressure were adopted, however, the stress field induced by traffic loads includes cyclic confining pressure and cyclic deviator stress. So far, the damping ratio evolution of soft clays under traffic loading has rarely been studied. To establish an empirical formula for the damping ratio, a series of cyclic triaxial tests with variable confining pressure were conducted on saturated Ningbo clay. The effects of some factors, such as cyclic stress ratio (CSR), effective consolidated confining pressure, loading frequency, and cyclic confining pressure were investigated. The trend of the relationship between the normalised damping ratio and accumulated axial strain is similar under different conditions, in which the normalised damping ratio degrades with the increase of accumulated axial strain. Be -sides, the damping ratio increases with an increase of CSR and effective consolidated confining pressure, while decreases with increasing loading frequency and cyclic confining pressure. Based on that, an empirical formula relating to CSR, effective consolidated effective confining pressure, loading frequency, and cyclic confining pressure is established to predict damping ratio under cyclic loading. A comparison between predicted results and measured data shows that the empirical formula cannot only characterise the trend of the damping ratio versus accumulated axial strain curve, but also provides a good prediction of the damping ratio. |
| 资助项目 | National Natural Science Foundation of China[51909259] ; National Natural Science Foundation of China[52079135] ; International Partnership Program of Chinese Academy of Sciences[131551KYSB20180042] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000629709700001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25957]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Juehao |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Wuhan Metro Grp Co Ltd, Wuhan 430070, Peoples R China 3.Wuhan Municipal Construct Grp Co Ltd, Wuhan 430023, Peoples R China 4.Ningbo Univ Technol, Soft Soil Res Ctr, State Key Lab Geomech & Geotech Engn, Ningbo 315211, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Juehao,Chen, Jian,Ke, Wenhui,et al. Damping ratio evolution of saturated Ningbo clays under cyclic confining pressure[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2021,143:12. |
| APA | Huang, Juehao,Chen, Jian,Ke, Wenhui,Zhong, Yu,Lu, Yuan,&Yi, Shun.(2021).Damping ratio evolution of saturated Ningbo clays under cyclic confining pressure.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,143,12. |
| MLA | Huang, Juehao,et al."Damping ratio evolution of saturated Ningbo clays under cyclic confining pressure".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 143(2021):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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