In order to explore and predict the law of the permanent deformation of road structure, this paper based on the analysis of the existing permanent deformation prediction model, select the appropriate model for asphalt surface aggregate base and soil deformation prediction respectively, and considering the secondary consolidation deformation to adjust forecasting model, the influence of the final through QingLin high-speed of measured data in the test section of the eight kinds of structure to modify prediction model is proposed for eight kinds of structure forms of permanent deformation forecast model and forecast process.The change law of permanent deformation is obtained.

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