Triaxial Test Numerical Simulation Based on Duncan - Chang Model

摘要

Based on the secondary development platform of large-scale finite element software, the Fortran subroutine of Duncan - Chang EB constitutive model was compiled and embedded in software. Drainage consolidation shear triaxial test of Shuibuya dam materials was carried out. The triaxial experiment results at confining pressures 0.2MPa, 0.6 MPa, 0.8 MPa, 1.0MPa is compared with three dimensional finite element stress - strain results. It is proved that the classic Duncan -Chang model is suitable for 100m-high rockfill dam deformation simulation.