| Project/Area Number |
07555145
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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 | 展開研究 |
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| Research Field |
構造工学・地震工学
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| Research Institution | Kobe University |
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Principal Investigator |
TAKADA Shiro Kobe University, Dept.of Architecture and Civil Eng., Professor, 工学部, 教授 (40027280)
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| Co-Investigator(Kenkyū-buntansha) |
UENO Junichi Konoike Co., Technician, 土木技術部, 技師
MIYAJIMA Masakatsu Kanazawa University, Faculty of Engineering, Assistant Professor, 工学部, 助教授 (70143881)
SATO Tadanobu Kyoto University, Disaster Prevention Research Institute, Professor, 防災研究所, 教授 (00027294)
KITAURA Masaru Kanazawa University, Faculty of Engineering, Professor, 工学部, 教授 (70026269)
KAMEDA Hiroyuki Kyoto University, Disaster Prevention Research Institute, Professor, 防災研究所, 教授 (80025949)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥10,700,000 (Direct Cost: ¥10,700,000)
Fiscal Year 1997: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | Liquefaction sensor / Liquefaction / Excess pore water pressure / Optimum arrangement / Neural network / Monitoring / Lateral flow / Response spectra |
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| Research Abstract |
Present research project started just after the 1995 Hyogoken Nanbu Earthquake. Most of coastal areas of Kobe harbor were liquefied including man-made lands of Port-Island and Rokko Island due to severe ground motions. Effective liquefaction sensors had been developed before the Earthquake, more quick emegency response could have been performed. The present project has been done under the many lessons by the Earthquake. Main research results are summarized as follows :
(1) Experiments and theoretical analyzes by FEM could estimate the water volume due to liquefaction.
(2) Seismometers turned out to be used for liquefaction sensors by analyzing a lot of seismograms observed at liquefied ground sites during the 1995 Hyogoken Nanbu Earthquake.
(3) Micro topography and ground conditions are classified depending on the possibility of liquefaction.
(4) FEM analyzes clarified that the amplification of ground motions was enlarged when the liquefaction occurred deep in the ground.
(5) Development of sensors is expected for measuring lateral ground flow and subsidence by liquefaction.
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