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発表 A design approach for composite ground pile and its verification

作成年度 2006年度
論文名 A design approach for composite ground pile and its verification
論文名(和訳)
論文副題
発表会 International Workshop on Recent Advances of Deep Foundations(深い基礎の最近の動向に関する国際ワークショップ)
誌名(No./号数)
発表年月日 2007/02/01 ~ 2007/02/02
所属研究室/機関名 著者名(英名)
寒地地盤チーム冨澤 幸一(TOMISAWA Kouichi)
北海道大学大学院三浦 清一(MIURA Seiichi)
抄録
This paper describes a practical foundation design method in which the ground is improved around the heads of pile foundations in soft ground or sandy ground subject to liquefaction. The shear strength increased due to ground improvement is reflected in the horizontal resistance of piles. The horizontal subgrade reaction of piles is determined by converting the shear strength S of improved ground to the modulus of deformation E. In this study、 the increased earthquake resistance produced from ground improvements around pile heads was confirmed through a series of centrifuge shaking tests. The horizontal resistance of piles equivalent to the design value was also confirmed through an in-situ horizontal loading test of piles installed in the improved ground.
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Copyright (C) 2006 Independent Administrative Institution Civil Engineering Research Institute for Cold Region.