Based on the parallel bonding model and macroscopic mechanical parameters,a uniaxial compression model is established to investigate the deformation characteristics and mechanical diffusion laws of paved road surfaces under the action of reciprocating vehicle loads using the discrete element numerical simulation method.The research results indicate that after paving asphalt surface layer on concrete road surface,it can effectively reduce the impact of vehicles on the concrete panels,significantly decreasing the range of diseases such as bottom detachment of concrete road panels.Under the action of reciprocating vehicle loads,slippage is prone to occur at the interface between the asphalt surface layer and the concrete road surface,which can affect the overall performance of the road surface.It is suggested to increase the bonding layer strength at the rigid-flexible interface of the road surface.During the vehicle loading process,the velocity vector points downward,and the front part of the load has the maximum velocity.After the vehicle loading,the velocity vector points upward,and the maximum velocity occurs at the moment when the vehicle load is departing.
concreteparticle discrete element theoryasphalt surfacesvehicle loading
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