Vertical oscillation of earth and rockfill dams: Analysis and field observation.
書誌事項
- タイトル別名
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- Vertical Oscillation of Earth and Rockf
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抄録
Although vertical oscillations may have a profound effect on the seismic stability and deformability of embankment dams, they have received so far little, if any, attention. Filling this gap, the paper develops a simple but realistic two-dimensional method for evaluating the dynamic characteristics and analyzing the seismic behaviour of earth and rockfill dams oscillating in the vertical direction. Shear and dilatational deformations are considered, the dependence of soil stiffness on confining pressure is rationally modeled and the effect of canyon geometry is approximately treated. Numerical results are portrayed in the form of dimensionless graphs of natural frequencies, modal displacement shapes and modal participation factors as functions of characteristic geometric and material parameters. To demonstrate the capability of the developed model to successfully predict the field performance of actual dams, three case studies are presented involving two earth and one rockfill dam from three seismically active countries. Reasonably good agreement is obtained between computed and observed (during earthquake shaking) natural frequencies and vertical crest accelerations.
収録刊行物
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- 土質工学会論文報告集
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土質工学会論文報告集 21 (4), 56-68, 1981
公益社団法人 地盤工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204612190592
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- NII論文ID
- 110003914739
- 130003750891
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- NII書誌ID
- AN00173174
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- NDL書誌ID
- 2431567
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- ISSN
- 03851621
- 00380806
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可