EFFECT OF ANISOTROPY OF GEOGRID STIFFNESS ON LOAD TRANSFER MECHANISM OF PILE-GEOGRID COMBINED METHODS
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- FUJIMOTO Kenta
- 熊本大学大学院自然科学研究科 社会環境工学専攻
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- WATANABE Yoichi
- 熊本大学大学院自然科学研究科 社会環境工学専攻
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- OTANI Jun
- 熊本大学大学院自然科学研究科 社会環境工学専攻
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- HIRONAKA Junichi
- 三井化学産資株式会社，環境資材開発部
Bibliographic Information
- Other Title
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- 杭体―ジオグリッド併用工法の荷重伝達メカニズムにおける補強材の異方性の効果
- クイタイ-ジオグリッド ヘイヨウ コウホウ ノ カジュウ デンタツ メカニズム ニ オケル ホキョウザイ ノ イホウセイ ノ コウカ
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Description
The construction of embankment on soft ground often causes the differential settlement. A deep mixing method of soil stabilization and earth reinforcement technology using geogrid are used in order to reduce this settlement. It is usually considered that embankment load can be transferred with arching effect and membrane effect of geogrid. However, only the geogrid tensile stiffness in one direction of it orientation is considered for present design. The geogrid is a multidimensional structure and it is considered that a membrane effect is on not only one direction but also two or other direction depending on its orientation. The objective of this paper is to investigate the effect of anisotropy of geogrid stiffness on load transfer mechanism of pile-geogrid combined method using Discrete Element Method (DEM). As a conclusion, the load transfer mechanism depending on the geogrid orientation was clearly observed.
Journal
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- Geosynthetics Engineering Journal
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Geosynthetics Engineering Journal 25 65-70, 2010
Japan Chapter of International Geosynthetics Society
