A New Method Based on PFC3D and Hierarchical Modeling for Pile Foundation Analysis
By developing a hierarchical modeling method, using discrete element analysis software PFC3D, a pile foundation model is built. According to the idea of finite element method, using smaller particles for concerned part and use larger particles for the part which is close to the model boundary. By adjusting the micromechanical parameters of the particles, the macroscopic mechanical properties of the soils constituted by different particle diameters are kept constant, which is verified by the triaxial test. This method can be applied to study the soil-structures interaction problems with DEM method by saving computation cost.
KeywordsDiscrete element method Pile foundation Hierarchical modeling
This research project was financially supported by the National Natural Science Foundation of China (No. 11672066). The authors are greatly appreciated for this support which made this study possible.
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