DIRECT MEASUREMENT P-Y CURVES OF SINGLE PILE IN SANDY GROUND USING CENTRIFUGE MODEL TEST

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  • 遠心模型実験による砂地盤中の単杭のp-y関係の測定
  • エンシン モケイ ジッケン ニ ヨル スナ ジバン チュウ ノ タンクイ ノ p-y カンケイ ノ ソクテイ

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Abstract

In order to obtain p-y curves of single pile in sandy ground, a divided pile loading system has been developed. The p-y curves can be directly measured from small to large displacement with this system. A series of centrifuge model tests has been conducted to investigate the effect of depth and diameter of piles on the p-y curves. It was found that the p-y curves can be modeled by hyperbolic curves with initial gradient of subgrade reaction kh and ultimate subgrade reaction pmax. An attempt was also made to simulate the behavior of horizontally loaded single pile by p-y curves obtained from the divided pile loading test.

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