| Project/Area Number |
26630205
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Nagasaki University |
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Principal Investigator |
JIANG Yujing 長崎大学, 工学研究科, 教授 (50253498)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 維持管理 / トンネル覆工 / 非破壊的手法 / 健全度 / 覆工コンクリート / 小型 / 超軽量 / 計測評価システム / ひび割れ / 振動特性 / 計測システム |
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| Outline of Final Research Achievements |
In the present study, the new healthiness evaluation method for lining concrete was ingeniously proposed based on the difference of the natural vibration characteristics. In particular, due to the presence of the rear cavity and cracks, using the features of Fourier spectral characteristics result in a change, healthiness of lining concrete structure was aging (the strength and rigidity), it can be evaluated in a non-destructive, high-precision. The usefulness of the proposed method was verified by application to the realization field.
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