Dynamic Analysis of the Seismo-Dynamic Response of Anti-Dip Bedding Rock Slopes Using a Three-Dimensional Discrete-Element Method
文献类型：期刊论文
| 作者 | Ren, Zhanghao; Chen, Congxin; Sun, Chaoyi; Wang, Yue |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 12期号:9 |
| 关键词 | anti-dip bedding rock slope dynamic response acceleration amplification factor three-dimensional discrete-element method Fourier spectrum permanent displacement |
| 英文摘要 | Earthquakes are a major external factor that induce landslides. In order to systematically study the dynamic effects and failure mechanism of anti-dip bedding rock slopes (the slope trend is the same as the joint trend, while the slope dip direction is opposite to the joint dip direction) under seismic action (as well as the spatial effects of the structural planes in the anti-dip bedding rock slopes), three-dimensional (3D) discrete-element numerical calculations were performed to analyze anti-dip bedding rock slopes with different slope angles, joint angles, and joint trends subjected to the action of natural seismic and sinusoidal waves. The results were analyzed to investigate the amplification effect, change in Fourier spectrum, failure mechanism, and permanent displacement of the slope under the applied seismic action. The permanent displacement of the slope was calculated using Newmark's method and the results obtained were discussed and compared with those obtained from a dynamic analysis performed using the 3D discrete-element method. The results showed that the regularity of the spatial distribution of the amplification effect was less clear than that encountered in the planar problem (unidirectional or bidirectional dynamical loading), and this leads to the effect of having an overall rhythmical nature. The seismic wave decays in the high-frequency part from the bottom up of the slope, while the dominant frequency of the seismic wave decreases. The value of the permanent displacement obtained using Newmark's method is much smaller than that obtained using the dynamic 3D discrete-element analysis approach. The angle between the joint and slope trends has a significant effect on the amplification effect, failure mode, permanent displacement, and stability of slopes subjected to seismic action. |
| 学科主题 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000794804800001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34761]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Ren, Zhanghao,Chen, Congxin,Sun, Chaoyi,et al. Dynamic Analysis of the Seismo-Dynamic Response of Anti-Dip Bedding Rock Slopes Using a Three-Dimensional Discrete-Element Method[J]. APPLIED SCIENCES-BASEL,2022,12(9). |
| APA | Ren, Zhanghao,Chen, Congxin,Sun, Chaoyi,&Wang, Yue.(2022).Dynamic Analysis of the Seismo-Dynamic Response of Anti-Dip Bedding Rock Slopes Using a Three-Dimensional Discrete-Element Method.APPLIED SCIENCES-BASEL,12(9). |
| MLA | Ren, Zhanghao,et al."Dynamic Analysis of the Seismo-Dynamic Response of Anti-Dip Bedding Rock Slopes Using a Three-Dimensional Discrete-Element Method".APPLIED SCIENCES-BASEL 12.9(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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