Patulous research on the surface cracks on the asphalt pavement

Based on the linear elastic fracture mechanics,the paper analyzes the relationship among the stress intensity factor of the crack tip,the pavement temperature distribution and pavement material parameter after the asphalt pavement cracks,analysis result proves that,in the anti-cracking design of the asphalt pavement,reasonably designing the depth of the asphalt surface and optimal selecting the pavement materials with low temperature shrinkage are the two important aspects to enhance the crack resistance of the asphalt pavement.