Similarity analysis of rutting test

To analyze the similarity of stress state between rutting test and asphalt pavement, finite element simulation was carried out to modify the rutting test model based on similarity theory. Firstly, the relationship between structure of asphalt pavement and parameters of the modified rutting test model was deduced through similarity theory. Then the affected areas for three typical pavement structure under loading of wheel load were obtained by finite element simulation with ABAQUS, and the model size of the entire structure was achieved by dint of similarity theory. According to the principle of mechanical response equivalency, parameters of indoor rutting test model for the multiple board structure were determined, and the correctness of multiple board rutting model was verified by rutting test.