Simulation of soil properties by particle flow code

Based on the theory of particle flow,Particle Flow Code(PFC)model of sand and clay were constituted respectively by adopting the different particle contact constitutive relationships.Preliminary study on mechanical properties of soil was done by PFC numerical simulation.The plane strain tests of sand and clay,and the emergence and development of shear bands were simulated numerically by PFC to analyze the stress-strain relationship curves of PFC models and test results under different confining pressures.The development of shear band was researched by analyzing the confining pressure-time history,volumetric curve and displacement field of PFC model.