Centrifuge model test and numerical interpretation of seismic responses of a partially submerged deposit slope
文献类型：期刊论文
| 作者 | Sun, Zhiliang1,2; Kong, Lingwei1,2; Guo, Aiguo1,2; Alam, Mohammad1,2 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 12期号:2页码:381-394 |
| 关键词 | Centrifuge model test Acceleration responses Excess pore pressure Deposit slope |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2019.06.012 |
| 英文摘要 | Partially submerged deposit slopes are often encountered in practical engineering applications. However, studies on evaluating their stability under seismic loading are still rare. In order to understand the seismic behavior of partially submerged deposit slopes, centrifuge shaking table model tests (50g) were employed. The responses of horizontal accelerations, accumulated excess pore pressures, deformation mode, and failure mode of the partially submerged deposit slope model were analyzed. In dynamic centrifuge model tests, EQ5 shaking event was applied numerically. The results indicated that in the saturated zone of the deposit slope, liquefaction did not occur, and the measured horizontal accelerations near the water table were amplified as a layer-magnification effect. It was also shown that the liquefaction-resistance of the deposit slope increased under multiple sequential ground motions, and the deformation depth of the deposit slope induced by earthquake increased gradually with increasing dynamic load amplitude. Except for the excessive crest settlement generated by strong shaking, an additional vertical permanent displacement was initiated at the slope crest due to the dissipation of excess pore pressure under seismic loading. The result of particle image velocimetry (PIV) analysis showed that an obvious internal arc-slip was generated around the water table of the partially submerged deposit slope under seismic loading. (C) 2020 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | National Natural Science Foundation of China[41702348] ; National Natural Science Foundation of China[41372314] ; Natural Science Foundation of Hubei Province, China[2017CFB373] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000522675200013 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23784]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Sun, Zhiliang |
| 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 |
| 推荐引用方式 GB/T 7714 | Sun, Zhiliang,Kong, Lingwei,Guo, Aiguo,et al. Centrifuge model test and numerical interpretation of seismic responses of a partially submerged deposit slope[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2020,12(2):381-394. |
| APA | Sun, Zhiliang,Kong, Lingwei,Guo, Aiguo,&Alam, Mohammad.(2020).Centrifuge model test and numerical interpretation of seismic responses of a partially submerged deposit slope.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,12(2),381-394. |
| MLA | Sun, Zhiliang,et al."Centrifuge model test and numerical interpretation of seismic responses of a partially submerged deposit slope".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 12.2(2020):381-394. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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