OPTIMUM LENGTH AND DEPTH OF REINFORCEMENT IN FOUNDATION BED AT DIFFERENT DENSITIES
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- GHOSH Chandan
- Department of Urban and Civil Engineering, Ibaraki University
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- YASUHARA Kazuya
- Department of Urban and Civil Engineering, Ibaraki University
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- KOMINE Hideo
- Department of Urban and Civil Engineering, Ibaraki University
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- MURAKAMI Satoshi
- Department of Urban and Civil Engineering, Ibaraki University
Bibliographic Information
- Other Title
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- 異なる密度状態下における直接基礎地盤に対する補強の最適な長さと深さ
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Abstract
The potential benefits of geo-composites in reinforced foundation beds are investigated. Dry Toyoura sand at three different densities (Dr=32%, Dr=70%, Dr=89%) has been used for the investigation. Medium size model box along with loading frame are fabricated to carry out tests on a 10cm wide (B) strip footing. One geo-composite layer was used centrally below the footing at different depths and lengths. From the test results, optimum length (L) of reinforcement was found to vary between 2B to 3B and placement depth (U) was between 0.25B to 0.5B. Same trend has been observed for three different densities. Moreover, at medium density load and settlement response showed significant improvement.
Journal
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- Geosynthetics Engineering Journal
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Geosynthetics Engineering Journal 16 163-168, 2001
Japan Chapter of International Geosynthetics Society
