Test and Finite Element Analysis on Dynamic Characteristic about Ultra-Long Bored Pile

The present standards for designing of ultra-long pile exist the contradiction between theory and practice; By combining the projects and finite element calculation and analyzing the characteristics of force and deformation, we can get the conclusion that there is asynchronous nature between the side resistance and the tip resistance in different soil layers. Meanwhile, the pile tip resistance has not been fully realized. To solve the above problems, I put forward reasonable proposals in order to make up for the deficiencies in designing. Introduction