Research on Influencing Factor of Crack Treatment on Municipal Cement Concrete Pavement
The cement concrete pavement is treated by asphalt overlay,and the finite element numerical simulation is carried out.The stress characteristics and deflection deformation characteristics of asphalt overlay joints are studied,and the main influencing factors are analyzed.The results show that under the action of heavy load or overloaded vehicle load,the pavement is prone to stress concentration,and the axle load of the vehicle also has a significant impact on the deflection deformation at the joint of the asphalt overlay.In the actual road operation process,attention should be paid to the phenomenon of heavy load and overload;increasing the thickness of asphalt overlay can significantly improve the deflection difference on both sides of the joint,and effectively delay and prevent the occurrence of reflection cracks.Compared with the stress condition,the influence of the elastic modulus of the asphalt overlay on the deflection deformation at the joint is more obvious.
municipal roadcement concrete pavementasphalt overlaycrack treatment
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