EXAMINATION OF SOIL SPRING SETTING METHOD OF SINGLE PILE

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  • MASE Tatsuya
    Architectural & Structural Eng. Operation Center, Tokyo Electric Power Service Co., Ltd., M. Eng.
  • NAKAI Shoichi
    Prof., Graduate School of Engineering, Chiba University, Dr. Eng.

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  • 単杭の杭周地盤ばねの評価法に関する検討
  • タンクイ ノ クイシュウ ジバンバネ ノ ヒョウカホウ ニ カンスル ケントウ

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This paper describes the evaluation method of soil springs in the design of the pile foundation in which a pile is expressed with beam elements and the ground with soil springs of horizontal and vertical directions. The proposed model of soil springs is based on the concept of the subloading surface model that realizes a smooth transition from elastic state to plastic state of the soil. Simulation analyses of lateral and vertical loading tests in an actual ground were carried out by using the proposed model. The computed results show a fairly good agreement with the test results.

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