Abstract
The authors investigated into the fundamental characteristics of the external loads on foundation piles from flowing liquefied soil based on the experimental results under a centrifuge condition. The followings were obtained as conclusions; The viscous load depending on the ground flow velocity of liquefied soil was dominant on the piles when model ground was completely liquefied. On the contrary, the external load resulting from ground displacements was governing the pile deformation when the model ground was not liquefied or partially liquefied. Furthermore, when a non-liquefied soil was overlaying on the liquefied soil, an external load due to ground displacements of the non-liquefied soil was dominant.
