2017 Fiscal Year Final Research Report
Elucidation of seismic behavior of hinge type precast arch culvert under unsymmetrical earth pressure condition
| Project/Area Number |
16K18148
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | ヒンジ式プレキャストアーチカルバート / 偏土圧 / 加速度応答 / 遠心模型実験 / 有限要素解析 |
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| Outline of Final Research Achievements |
In the design of the hinge type precast arch culvert, it is assumed that in the ideal condition, the right and left earth pressures acting on the culvert are equal. In practice, however, unsymmetrical earth pressure may act on the culvert at the mine mouth.
In this study, the seismic behavior of the culvert under unsymmetrical earth pressure condition was investigated through centrifugal model tests and finite element analyses. As a result, it is confirmed that the unstable mechanical state of the culvert due to the unsymmetrical earth pressure causes the torsional deformation of the arch members, and the damages such as slippage and joint openings of top hinges and bending cracks of arch members.
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| Free Research Field |
地盤工学
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