Abstract
Based on the multi-layer elastic system theory, large general used finite element software is used to analysis in the paper. Among the three kind pavements, the flexible pavement maximal deflection and wheel gap deflection difference is most, and the rigidity pavement is least, and the semirigid pavement is centered. Whatsoever, under the same axis load, the surface layer bottom deflection diminish speed is quicker than the basic layer bottom deflection diminish speed after a sort along with the structure layer rigidity increase. Showing the pavement structure layer upside deflection is sensitive to the structure layer intensity and rigidity increase.
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