Influences on Asphalt Pavement Performance of Graded Broken Stone Sub-Base Based on Cross-Anisotropy
Graded broken stone materials show cross-anisotropic behavior, but now most pavement structure analysis are based on assuming pavement structure to be isotropic layered system. In order to accurately evaluate pavement responses based on cross-anisotropy utilizing graded broken stone as sub-base materials, the influences of sub-base thickness, horizontal modulus and breaking force on the stress in pavements are studied by using the three-dimensional finite element software ABAQUS. The results show that the shear stress of the pavement decreases with the increasing of the sub-base thickness or the horizontal resilient modulus but the shear stress of the pavement increases obviously with the increasing of braking forces.
Guangfan Li, Yong Huang and Chaohe Chen
L. M. Duan et al., "Influences on Asphalt Pavement Performance of Graded Broken Stone Sub-Base Based on Cross-Anisotropy", Advanced Materials Research, Vols. 250-253, pp. 1510-1513, 2011