Abstract
The dynamic behavior of a group-pile foundation with inclined piles in loose sand has been investigated by conducting dynamic centrifuge model tests. And the dynamic features of it have been evaluated. In this paper, the centrifuge model tests are simulated by dynamic finite element analyses, in which the deformation of the piles is carefully investigated, and those analyses are compared with the current method such as separated method and seismic deformation method, and then it was found that dynamic analyses are effective for the seismic design of group-pile foundation with inclined piles. Moreover the relations between the dynamic behavior of group-pile foundation and the design parameters such as pile spacing and inclination angle of pile were investigated by dynamic analyses.
