DYNAMIC SOIL STRUCTURE INTERACTION OF SPREAD FOUNDATION, PILE FOUNDATION AND PILED RAFT FOUNDATION

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  • 直接基礎,杭基礎とパイルド・ラフト基礎の動的相互作用特性
  • チョクセツ キソ クイ キソ ト パイルド ラフト キソ ノ ドウテキ ソウゴ サヨウ トクセイ

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This paper deals with soil-structure interaction of pile foundation, piled-raft foundation and embedded foundation on pile group. The impedances and foundation input motions are analyzed by the thin layered element method and flexible volume substructure method. The comparison among piled-raft foundation, pile foundation and raft foundation and the comparison among embedded foundation on pile group, piled foundation and embedded foundation are made. Also, the effects of the joint at pile head, the extension at pile tip, the size of raft of piled-raft foundation and the contact condition between soil and the bottom of mat on pile group are discussed. The bending moments in piles subjected to harmonic loads and S-wave input motion are also examined.

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