Post-mortem analysis of the embankment failure at Makinohara of Tomei Expressway induced by Surugawan Earthquake (Aug. 2009)
| Project/Area Number |
23560594
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Chuo University |
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Principal Investigator |
OHTA Hideki 中央大学, 研究開発機構, 機構教授 (80026187)
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| Co-Investigator(Kenkyū-buntansha) |
齋藤 邦夫 (斎藤 邦夫) 中央大学, 理工学部, 教授 (00092552)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 土質力学 / 斜面崩壊 / 締固め / 盛土 / 定体積せん断 |
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| Research Abstract |
Comparing the laboratory test data with the in-situ dry density and moisture content, it was concluded that constant volume shear strength of the fill which did not fail during the Surugawan earthquake (Aug. 2009) was about 1,200kPa while the strength of the fill which failed during the earthquake was estimated to be about 120kPa based on the back-calculation. The possible mechanism of this reduction of the shear strength of the fill material, at Makigahara, Tomei Expressway, caused by a long-term infiltration of the water was quantitatively clarified by the overall observation at the site together with a series of laboratory tests on the fill material.
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Report
(4 results)
Research Products
(73 results)
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[Journal Article] Estimation of rockfill dam behavior during impounding by elasto-plastic model2011
Author(s)
Tomida, N., Sato, N., Soda, H., Jikan, S., Ohmori, K. and Ohta, H.
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Journal Title
Dams and Reservoirs under Changing Challenges, Taylor & Francis Group, London
Volume: なし
Pages: 27-34
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Peer Reviewed
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[Presentation] Estimation of rockfill dam behavior during imponding by elasto-plastic model2011
Author(s)
Tomida, N., Sato, N., Soda, H., Jikan, S., Ohmori, K. and Ohta, H
Organizer
Dams and Reservoirs under Changing Challenges
Place of Presentation
Lucern
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