In the design of the pavement structure, the setting of the permeable layer and the sticky layer is emphasized. The mechanism of action is to generate cohesive force between the pavement structural layers, so that the surface layer, the base layer and the parts of the surface layer become an organic whole, which is similar to the road asphalt. The assumption that the middle layer of the elastic layered continuous system is completely continuous in the pavement design calculation is consistent, and the bending tensile stress and shear stress of the interlayer interface generated by the external load can be transferred to the entire pavement structure. The layer will reduce the bearing capacity of the pavement, and easily cause the slippage of the pavement structure, as well as cause the concentration of bending and tensile stress at the bottom of the pavement surface structure, thereby accelerating the fatigue cracking of the pavement. At the same time, the setting of the permeable layer and the sticky layer between the structural layers of the pavement also plays a certain role in sealing water, that is, the permeable layer and the sticky layer form a relatively closed interface between the structural layers of the pavement, which effectively prevents the underwater infiltration of the pavement. , reducing the damage of the external environment to the pavement structure.