An Improved Method for Estimating Earthquake-Induced Permanent Displacement of Bedding Rock Slopes
文献类型：期刊论文
| 作者 | Liu, Yaqun1,2; Shen, Hui1,2; Li, Haibo1,2 ; Liu, Bo1,2; Zhang, Wei1,2
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| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
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| 出版日期 | 2024-05-24 |
| 页码 | 28 |
| 关键词 | Bedding rock slope Plane failure Permanent displacement Newmark analysis Seismic stability |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-024-03971-x |
| 英文摘要 | An improved method for fast and reasonable estimation of seismically induced permanent displacement of bedding rock slopes is proposed in this study. The proposed method introduces the pseudo-dynamic seismic force to account for the amplification effect induced by the slope topography. In addition, real-time updates of the tangential-normal coupling forces on the sliding surface during seismic excitations are implemented. The feasibility and adaptability of the proposed method are verified through a comparison with existing methods. Additionally, the differences between the earthquake-induced displacements calculated using the proposed method and the Newmark method are analyzed using 171 strong ground motion records as input excitations. A parametric sensitivity analysis shows that permanent displacement is significantly influenced by the friction angle of the joint phi\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\phi$$\end{document}, amplitude of the input acceleration P0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P_0$$\end{document}, dip angle of the slope failure plane beta\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\beta$$\end{document}, and slope height H\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$H$$\end{document}. Finally, a set of landslide probability maps is obtained, and a landslide probability estimation procedure for slopes is recommended, which provides a convenient way to preliminarily evaluate the seismic stability of bedding rock slopes. The amplification effect on the seismic response of rock slopes is considered.Tangential-normal forces on the sliding surface were coupled.Automatic recognition of sliding status is based on the Mohr-Coulomb criterion.Landslide probability maps are provided. |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001234042100003 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41528]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shen, Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yaqun,Shen, Hui,Li, Haibo,et al. An Improved Method for Estimating Earthquake-Induced Permanent Displacement of Bedding Rock Slopes[J]. ROCK MECHANICS AND ROCK ENGINEERING,2024:28. |
| APA | Liu, Yaqun,Shen, Hui,Li, Haibo,Liu, Bo,&Zhang, Wei.(2024).An Improved Method for Estimating Earthquake-Induced Permanent Displacement of Bedding Rock Slopes.ROCK MECHANICS AND ROCK ENGINEERING,28. |
| MLA | Liu, Yaqun,et al."An Improved Method for Estimating Earthquake-Induced Permanent Displacement of Bedding Rock Slopes".ROCK MECHANICS AND ROCK ENGINEERING (2024):28. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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