Numerical analysis on the mechanism with CFS rammed expanded piles by particle flow code

Numerical modeling of soil-pile interaction under vertical loading was performed by Particle Flow Code in two dimensions. The numerical simulations show that the change of the soil particle and porosity in which the composite foundation with rammed expanded piles under the different vertical loading, and interpret the pile-soil mechanism that is quantitative analysis. The phenomena and corresponding mechanisms obtained from numerical tests benefit design and implementation of physical model tests.