Influences on Asphalt Pavement Performance of Graded Broken Stone Sub-Base Based on Cross-Anisotropy

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 1510-1513
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.1510
• Online since: May 2011
• Authors: Li Min Duan, Jin Chao Yue, Xiang Fei Niu
• Keywords: ABAQUS, Cross-Anisotropy, Graded Broken Stone, Shearing Stress

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