Study on design method of washed-away prevention system to tsunami
| Project/Area Number |
24760370
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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 |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Public Works Research Institute |
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Principal Investigator |
NAKAO Hisashi 独立行政法人土木研究所, その他部局等, 研究員 (50514171)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 津波 / 橋梁 / 流出防止システム / サイドプレート / 差分格子ボルツマン法 / 水路実験 / 作用力 |
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| Outline of Final Research Achievements |
This study discusses the washed-away prevention system of the superstructure through a series of flume test and analysis.
In the flume tests, 1/150-scaled models of the superstructure with four-girders section were employed with/without the vertical, 45 degree and 60 degree side plate. Test results showed that the 45 degree side plate effectively reduced the tsunami-induced horizontal and vertical forces and rotate clockwise moment.
In this study, Finite-Difference Lattice Boltzmann Method was employed for the numerical analysis. The results showed that the analysis of the two-phase flow with water and air, the tendency of the hydrodynamic pressure distribution and flow regime at the result of the numerical analysis were corresponded with the flume test.
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Report
(4 results)
Research Products
(16 results)
