Abstract

Pile foundations near the shoreline were severely damaged during the Hyogo-ken Nanbu Earthquake, January 17, 1995. The damage is obviously caused by soil liquefaction. The objective of this study is to investigate the responses of pile foundations due to the liquefaction-induced lateral spreading. Earthquake response analyses of a structure on pile foundation are conducted using the numerical model taking into account the effect of excess pore water pressure. As a result, it is found that soil responses near the shoreline are greatly affected by the liquefaction-induced lateral spreading, and that the damaged mechanism of piles are very different by the distance from the shoreline.

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