| DOI: | 10.1007/s11069-020-04325-w
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| 论文题名: | Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams |
| 作者: | Durmaz S.; Ülgen D.
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| 刊名: | Natural Hazards
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| ISSN: | 0921030X
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| 出版年: | 2021
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| 卷: | 105, 期:1 | | 起始页码: | 587
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| 结束页码: | 610
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| 语种: | 英语
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| 中文关键词: | Concrete-faced rockfill dam (CFRD)
; Equivalent linear analysis
; Finite element method
; Newmark’s sliding block method
; Permanent deformation
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| 英文关键词: | concrete
; deformation
; displacement
; dynamic analysis
; dynamic response
; earthquake prediction
; finite element method
; ground motion
; rockfill dam
; seismic design
; slope stability
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| 英文摘要: | Prior studies highlight the importance of earthquake-induced permanent displacement for the safety assessment of the embankment dams. Concrete-faced rockfill dams (CFRDs) have become popular at especially seismically active regions with their high seismic energy absorption capacity. However, seriously damaged rockfill dams have been reported after some earthquake exposures. Even so researchers have focused on the dynamic response of embankments, few studies have been conducted to reveal the seismic behavior of rockfill dams. In this study, the issue under scrutiny is to establish a preliminary design procedure considering the earthquake-induced permanent displacement and acceleration response of CFRDs. For this purpose, numerical models are prepared with various geometric and material properties. Real earthquake records are used for seismic excitation. Dynamic analyses are conducted with a finite element method-based software. The equivalent linear analysis procedure is followed under two-dimensional plain-strain condition. Acceleration responses of dams are recorded at the centerline of the models. Then, the Newmark’s sliding block approach is utilized to calculate the permanent displacements from acceleration records. A procedure is developed for the engineers to foresee the likely permanent displacement at the preliminary design stage. To prove the reliability, the recommended procedure is applied to case histories, and then the results are compared. © 2020, Springer Nature B.V. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/168999
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| Appears in Collections: | 气候变化与战略
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作者单位: | Department of Civil Engineering, Faculty of Engineering, Muğla Sıtkı Koçman University, Kötekli/Muğla, 48000, Turkey
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| Recommended Citation: | |
Durmaz S.,Ülgen D.. Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams[J]. Natural Hazards,2021-01-01,105(1)
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