Numerical evaluation of ground motion amplification of rock slopes under obliquely incident seismic waves
文献类型：期刊论文
| 作者 | Shen, Hui1,2; Liu, Yaqun1,2; Li, Haibo1,2 ; Liu, Bo1,2; Xia, Xiang1,2; Yu, Chong1,2
|
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 178页码:22 |
| 关键词 | Rock slope Dynamic response Wave propagation Seismic amplification Oblique incidence Spectral response |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2024.108488 |
| 英文摘要 | The incident angle of the seismic waves has a significant influence on the seismic response of rock slopes. However, the details of the interactions between oblique seismic waves and slopes are not well understood. The objective of this study is to quantitatively evaluate the amplification of the peak ground acceleration (PGA) and spectral acceleration (SA) of rock slopes under obliquely incident seismic waves. The incident wave field was implemented in the commercial software ABAQUS based on the equivalent nodal force method and viscousspring artificial boundary theory. Two test examples simulating the propagation of oblique SV waves were used to verify the validity and accuracy of the proposed method. An extensive parametric study consisting of 375 simulation cases was performed by considering the slope height, slope angle, and incident angle of the seismic waves. The results reveal that for different incident waves, the maximum amplification factors of PGA and SA under oblique incidence of seismic waves are generally 1.4-2.2 and 1.7-1.9 times those under vertical incidence, respectively. Statistical analysis of the amplification factors indicated that the amplification effects were not positively correlated with slope height, but generally increased with increasing slope angle and incident angle of the seismic waves. In contrast, the spectral periods corresponding to the maximum SA amplification factors showed a strong positive correlation with the slope height but were less sensitive to the slope angle and incident angle of the seismic waves. The findings emphasized the significance of slope geometry and incident direction of seismic waves in ground motion amplification, which may provide quantitative insights and useful references for seismic design in slope engineering. |
| 资助项目 | National Natural Science Foundation of China[42277176] ; National Natural Science Foundation of China[51679231] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001167892300001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40707]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Yaqun |
| 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, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Hui,Liu, Yaqun,Li, Haibo,et al. Numerical evaluation of ground motion amplification of rock slopes under obliquely incident seismic waves[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2024,178:22. |
| APA | Shen, Hui,Liu, Yaqun,Li, Haibo,Liu, Bo,Xia, Xiang,&Yu, Chong.(2024).Numerical evaluation of ground motion amplification of rock slopes under obliquely incident seismic waves.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,178,22. |
| MLA | Shen, Hui,et al."Numerical evaluation of ground motion amplification of rock slopes under obliquely incident seismic waves".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 178(2024):22. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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