EFFECTS OF THE DUNCAN-CHANG E-B MODEL PARAMETERS ON NUMERICAL RESULTS OF SETTLEMENT OF THE SOFT EMBANKMENT

Soil model parameters are critical in assuring reliability of numerical results of commonly used finite element method for simulating settlement of embankment.The Duncan-Chang E-B model,a nonlinear elastic model widely used in the geotechnical engineering,was chosen in this paper.Based on the sensitivity analysis of model parameters,relationships of various parameters with vertical embankment settlement and lateral displacement were obtained. The critical parameters were also determined based on the sensitivity analysis.