Study on semi rigid pavement structure with granular base;

The results show that the effect of cross-anisotropy to surface deflection is not obvious when the thickness of granular base is at some degree.

This paper analysed the structure of asphalt pavement with granular base by nonlinear finite element method, in which the granular base was modeled with the Boyce nonlinear elastic model enhanced with a Drucker-Prager plasticity model and other layers were modeled with elastic model.

Structure design of asphalt pavement based on cross-anisotropy of macadam base;

With the decrease of granular horizontal elastic modulus,the tensile stress at bottom of granular sub-base will be reduced effectively.

On the basis of current unbound graded base, this paper discusses well-graded and well-compacted unbound aggregate mixture, which form stone-on-stone skeleton, makes a significant structural contribution, and shows a good drainage performance.

On the basis of current unbound graded base, this paper discusses well-graded and well-compacted unbound aggregate mixture, which form stone-on-stone skeleton, make a significant structural contribution, and shows a good drainage performance.

According to the application of the cement treated base,this thesis analyzes the cause of reflection cracks in cement treated base asphalt pavement,combined with strength,dry and heat shrinkage deformation properties,anti-crack evaluation index is put forward.