A drastic improvement of strength and stiffness of compacted soil by high compaction and its consideration in design and compaction control
| Project/Area Number |
23560597
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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 | Tokyo University of Science |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
塚本 良道 東京理科大学, 理工学部土木工学科, 教授 (50253505)
川辺 翔平 (川邉 翔平) 東京理科大学, 理工学部土木工学科, 助教 (30609384)
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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 |
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Keywords | 盛土 / 変形・強度特性 / 透水係数 / 最大乾燥密度 / 最適含水比 / 最適飽和度 / 締固め特性 / 締固め度 / 盛土締固め管理 / 締固めエネルギー / 盛土施工管理 / 三軸圧縮試験 / セメント改良土 |
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| Research Abstract |
To revise the current design and compaction practice for the contraction of embankments of roads, railways and residential areas, river levees, earth fill dams etc by encouraging better compaction and taking into account its effects in design and compaction control, a series of laboratory compaction tests and stress-strain tests on a wide variety of sandy soils, gravelly soils and cement-mixed soils were performed.
It was found that the compaction properties and stress-strain properties of compacted soil is a function of compacted dry density dry density and the degree of saturation during compaction Sr (not the water content w that is usually used in current practice) that does not include the compaction energy level as a variable. Based on the above, a new design and compaction control method controlling and measuring dry density and Sr (not w) is proposed.
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Report
(4 results)
Research Products
(37 results)
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[Journal Article] Stability of existing bridges improved by structural integration and nailingcompression2012
Author(s)
Tatsuoka, F., Munoz, H., Kuroda, T., Nishikiori, H., Soma, R., Kiyota, T., Tateyama, M. and Watanabe, K.
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Journal Title
Soils and Foundations
Volume: 52
Issue: 3
Pages: 430-448
DOI
Related Report
Peer Reviewed
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[Presentation] Seismic design of GRS integral bridge
Author(s)
Yazaki, S., Tatsuoka, F., Tateyama, M., Koda, M., Watanabe, K. and Duttine, A
Organizer
International Symposium on Design and Practice of Geosynthetic-Reinforced Soil Structures
Place of Presentation
Bologna, Italy
Related Report
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[Presentation] Lateral cyclic loading tests of a full-scale GRS integral bridge model
Author(s)
Koda, M., Nonaka, T., Suga, M., Kuriyama, R, Tateyama, M. and Tatsuoka, F.
Organizer
International Symposium on Design and Practice of Geosynthetic-Reinforced Soil Structures
Place of Presentation
Bologna, Italy
Related Report
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[Presentation] Seismic stability of geosynthetic-reinforced soil integral bridge evaluated by shaking table test
Author(s)
Kawabe, S., Tatsuoka, F., Kuroda, T., Yamaguchi, S., Matsumaru, T., Watananbe, K. and Koda, M.
Organizer
International Symposium on Design and Practice of Geosynthetic-Reinforced Soil Structures
Place of Presentation
Bologna, Italy
Related Report
