Abstract
For performance-based design of pile foundation, it is necessary to develop the practical prediction method to forecast long-term displacements of pile foundation. Many prediction methods have been proposed, however, it is still need to be developed due to the difficulty in evaluating the interaction of pile-soil-pile system, or in considering the long-term displacements accompanied with consolidation settlement. In this paper, the applicability of soil-water coupling elasto-plastic FEM with appropriate pile model to the prediction of deformation of pile is verificated in comparison with actual load test for single pile. Further more, the prediction for long-term displacements of actual pile foundation with soil-water coupling elasto-plastic FEM is conducted, and the long-term behavior of pile foundation, the mechanism of uneven settlement, the load sharing system in pile foundation are examined carefully.
