보강재의 구속조건에 따른 초연약지반의 지지력개선효과에 관한 연구
A Study on The Improving Effects of the Bearing Capacity of Very Soft Ground by Restricting Conditions of Reinforcement
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This study was carried out the model experiment in laboratory to evaluate the bearing capacity improvement of soft ground as altered constraint condition of reinforcements according to geotextile, georid, steel bar. As a results, the value of BCR was increased linearly as improvement of the stiffness of reinforcements, and the factor governed the increasement of BCR was the increasement of frictions between reinforcement and clay as far as the constrain conditions increased until T=85.6kg. Moreover, An angle of inclination, θ, between reinforcement and horizontal surface was distributed from 38° to 50° for Geotextile, from 45° to 50° for Geogrid and from 14° to 16° for steel bar. A radius of heaving, r, of clay ground by vertical weight at side was distributed from 0.6m to 0.7m for Geotextile, from 0.5m to 0.8m for Geogrid, and from 2.4m to 3.0m for steel bar. In case of steel bar, r was 4 times that of Geotextile.
Abstract
This study was carried out the model experiment in laboratory to evaluate the bearing capacity improvement of soft ground as altered constraint condition of reinforcements according to geotextile, georid, steel bar. As a results, the value of BCR was increased linearly as improvement of the stiffness of reinforcements, and the factor governed the increasement of BCR was the increasement of frictions between reinforcement and clay as far as the constrain conditions increased until T=85.6kg. Moreover, An angle of inclination, θ, between reinforcement and horizontal surface was distributed from 38° to 50° for Geotextile, from 45° to 50° for Geogrid and from 14° to 16° for steel bar. A radius of heaving, r, of clay ground by vertical weight at side was distributed from 0.6m to 0.7m for Geotextile, from 0.5m to 0.8m for Geogrid, and from 2.4m to 3.0m for steel bar. In case of steel bar, r was 4 times that of Geotextile.
참고문헌 (6)
- 福往降二, "ビニロンシートによる軟弱地盤表層処理工法", 第22回土木工学会年次学術講演概要集, pp.1~4 (1967)
- 山内豊聴, "敷網工の実用支持力公式の一提案", 九州大学工学週報, pp.201~207 (1979)
- Watari, Y, "Field study of behavior of geogrids and soft ground", 3th Int. Conf. of Geotextiles, pp.187~191 (1986)
- 平尾和年, "ジオテキスタイルによる軟弱地盤の支持力改良とその評価法に関する研究", pp.42~46 (1997), 九州大学博士論文
- 矢島寿一, "ジオテキスタイルを用いた強化路盤の変形挙動と効果", 第3回ジオテキスタイルシンポジウム発表論文集, pp.60~65 (1988)
- 西林清茂, "表層被覆工法(シート)", 土木施行, 21(3), pp.48~56 (1980)