2011 Fiscal Year Final Research Report
Pullout resistance of geo-cell placed as tensile reinforcement in backfill
| Project/Area Number |
22760359
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geotechnical engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KIYOTA Takashi 東京大学, 生産技術研究所, 准教授 (70431814)
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| Project Period (FY) |
2010 – 2011
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| Keywords | ジオセル / ジオグリッド / 補強土 / 土中引き抜き抵抗 / 模型実験 / 盛土材料 / ジオシンセティックス / 粒径 |
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| Research Abstract |
Reinforcement, such as strips, woven-geotextiles and geogrids, is used to tensile-reinforce the backfill of soil structures in recent civil engineering applications. The use of geo-cells as tensile reinforcement has been quite limited, but geo-cells have been often used to restrain the foundation ground from horizontal spreading when subjected to vertical load by, for example, embankment, light-weight houses and traffic. Geo-cells have such advantages as that large-particles can be contained inside the cells and respective cells have a large anchorage capacity when pull laterally. On the other hand, conventional type geo-cells are not designed to have a high global stiffness when pull laterally. To examine whether geocells can be function as tensile reinforcing when used to reinforce the backfill of, for example, retaining walls and foundations, a series of laboratory tests were performed to evaluate the pull-out resistance of small-scaled models of geo-cell having different particle size of the backfill in which the geo-cell models were arranged.
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[Journal Article] Development of a new bridge type, GRS integral bridge2010
Author(s)
atsuoka, F., Nishikiori, H., Soma, R., Hirakawa, D., Kiyota, T., Tateyama, M. and Watanabe, K.
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Journal Title
Proc. of the 9th International Conference on Geosynthetics
Pages: 1659-1664
Peer Reviewed
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