Evaluation of the stability of coastal structures and their foundations due to tsunamis containing suspended sediment and the effectiveness of countermeasures
| Project/Area Number |
26820200
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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 |
Hydraulic engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 津波 / 海岸保全施設 / 耐津波安定性 / 浮遊砂 / 粘性係数 / 非ニュートン流体 / 数値計算 / 波力 / 評価式 / 一様流 / 粘度 |
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| Outline of Final Research Achievements |
To establish a numerical analysis method for the resilience of coastal protection facilities against tsunamis containing suspended sediment, this study was devoted to proposing an evaluation equation for the viscosity of water containing suspended sediment, developing a numerical model combined with the proposed equation, and examining and discussing the influence of suspended sediment on the stability of coastal protection facilities against tsunamis using the developed model. Numerical simulations showed that the maximum tsunami forces induced by impact bore pressure and quasi-steady wave pressure increased with suspended sediment concentration. This suggested that it is essential to consider the influence of suspended sediment in assessing the stability of coastal protection facilities against tsunamis and the developed model is a useful tool contributing to the enhancement of the resilience of coastal protection facilities.
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Report
(4 results)
Research Products
(18 results)
