Research on Kinetic Effect of Vehicular Load on Subgrade

The effect of dynamic loads under different pavement conditions was analyzed;the effect of dynamic loads at different speeds was studied;the effect of dynamic loads of different weight of vehicle on the pavement was discussed.The result shows that dynamic stress decreases with the increase of pavement;the effect of road roughness on the dynamic load is obvious and the dynamic load increases significantly with the reduce of the levels of road roughness;the dynamic load increases with the velocity improvement;the dynamic load of heavy truck is much greater than that of small vehicle with the same conditions.