COUPLING NORMAL AND SHEARING STRESSES TO USE IN FINITE ELEMENT ANALYSIS OF SOIL COMPACTION

A finite element model was modified to use a constitutive relationship of soil compaction that included the effects of both normal and shearing stresses. Predicted values of soil stress were compared against results from a laboratory experiment. All predicted values at final deformed depths less than 0.3 m were within the 95% confidence intervals of the measured values, but at deeper depths most of the predictions fell outside the 95% confidence intervals of the measured values.