護岸背後の杭基礎構造物の被災原因と斜杭による側方流動対策法に関する遠心振動実験研究(<特集>液状化による被害と対策)

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The paper investigates experimentally the behavior of a structure-footing-four piles system under the action of seismic shaking causing liquefaction of a critical soil layer and subsequent soil flow towards a laterally displacing quay-wall. A series of innovative centrifuge model tests was conducted in a parametric fashion to investigate the role of this pile foundation in the response of the system. The response was recorded in 38 channels providing time histories of acceleration, displacement, excess pore water pressure, pile axial and bending strains, and earth pressure. The results provided significant quantitative information and qualitative insight on the behavior of this realistically complex soil-foundation-structure system.
2010-11-01