Abstract
In this Paper, by Using the Finite Element Method, the Shrinkage Stress of Semi-Rigid Asphalt Pavement Structure was Analyzed. the Result Shows the Shrinkage Stress is the Key Factor Resulting in the Cracking of Semi-Rigid Base. the Dry Shrinkage Stress is Caused by the Subbase Frictional Resistance Preventing the Dry Shrinkage of Semi-Rigid Base, so it can be Assumed that the Dry Shrinkage Stress is Distributed Evenly in the Total Base. Meanwhile the Distribution Characteristics of Stress along Road Length, the Distribution Characteristics of Stress along Road Depth, the Effect of the Rate of Water Loss on Shrinkage Stress, the Effect of Temperature Difference on Temperature Shrinkage Stress, the Effect of Pavement Length on Shrinkage Stress and Dry Shrinkage Stress and Temperature Shrinkage Stress were Analyzed. the Resule would Provide the Basis for Structure Design and Material of Semi-Rigid Base.
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