| Project/Area Number |
17206049
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Waseda University |
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Principal Investigator |
HAMADA Masanori Waseda University, Faculty of Science and Engineering, Professor (30164916)
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| Co-Investigator(Kenkyū-buntansha) |
KIYOMIYA Osamu Waseda University, Faculty of Science and Engineering, Professor (50298139)
AKAGI Hirokazu Waseda University, Faculty of Science and Engineering, Professor (30150965)
MIURA Fusanori Yamaguchi University, Faculty of Engineering, Professor (60109072)
SATO Tadanobu Kobe Gakuin University, Institute for Interdisciplinary Education, Professor (00027294)
張 至鎬 早稲田大学, 理工学術院, 助手 (70367051)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000)
Fiscal Year 2007: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2006: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2005: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
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| Keywords | liquefaction / ground flow / centrifuge test / pile foundation / quaywall / 遠心載荷実験 / 耐震設計 / 基礎構造 / 杭 |
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| Research Abstract |
The characteristics of the external forces on the pile foundations from flowing liquefied soil were examined by centrifuge model experiments and numerical analyses. The following results were obtained: The liquid force, resulting from the flow of the liquefied soil is dominant when the ground completely liquefied, while the solid force resulting from the displacement of the liquefied soil was dominant when the ground was in not-perfect liquefaction. The procedure to estimate the external design force was proposed based on the experimental results.
On the other hand, the effectiveness of countermeasures to prevent the flow of the liquefied soil behind quaywalls were examined by centrifuge model tests and numerical analyses. Based on the experimental results the procedures for the estimation of design force on countermeasure walls was proposed.
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