Study on Computer Numerical Simulation of Driving Static Pressure Pile

The method to study soil compaction effect caused by driving static pressure pile was proposed with the holes expansion principle analysis. It uses FEM (finite element method) computer numerical simulation to research holes expansion commonly. The expansion of holes radius changes from a0 to 2a0 corresponding to original one from zero to R. Comparing with conclusions obtained from other theories, FEM computer numerical simulation is valid for the analysis of holes expansion. Comparing with the traditional holes expansion principle, it expands the application scope and can be extended to analyze other cross-section forms of holes.