VERIFICATION AND VALIDATION OF NUMERICAL ANALYSIS FOR CONSOLIDATION OF CLAY GROUND

Abstract

Verification and validation procedures were applied for numerical analysis of clay ground consolidation. The numerical analysis is a soil-water coupled analysis on finite deformation porous media theory.

At the verification stage, the code and calculation verification was conducted based on an analytical solution and the concept of order of accuracy. The accuracy and convergence of numerical method were verified.

At the validation stage, first some elasto-plastic material parameters were assumed as normal distributions from laboratory tests. Second the numerical analyses simulated centrifuge tests of clay ground consolidation using the probabilistic material parameters. By comparing the probability distributions of experimental and numerical results, the uncertainty in the clay ground deformation and validity of numerical method were discussed. The distribution of numerical results overestimated that of experimental results.