Accumulated Behavior of Subgrade Clay under Traffic Loading

Based on the model test, repeated loading test and prototype monitoring, the accumulated behavior, shakedown, hysteretic and plastic behavior of cohesive subgrade soil were studied under traffic loading. According to the test results, the factors that contribute to various mechanic behaviors of subgrade soil are analyzed in detail. In addition, the study presents discussion on stress-strain relation, accumulated behavior and plastic deformation model of subgrade red clay with deformation principle. The mechanism of permanent deformation is explained in light of shakedown and hysteretic behavior.