Author(s)

Jianguo Sun, Yujie Chen, Hongyan Yin, Qiuyun Wang

Corresponding Author

Jianguo Sun

Abstract

with the Growth of Air Traffic and the Emergence of Large Aircraft, Some Large Airport Runways Built in the Early Days in Our Country Are Seriously Damaged in Pavement Structure and Their Service Performance Has Dropped Sharply, Which Can No Longer Meet the Requirements of Normal Operation of Airports. in This Paper, the Contact Element in the Finite Element Software Ansys is Used to Simulate the Interlayer Bonding Condition of the Pavement, the Finite Element Calculation Models under Different Interlayer Bonding Conditions Are Established, and the Deflection Variation Characteristics Are Analyzed. the Results Show That the Contact Condition between the Old Cement Concrete Pavement Slab and the Foundation Has a Slightly Greater Impact on the Deflection of the Overlay. the Contact Condition between Epoxy Asphalt Concrete and the Old Cement Concrete Pavement Slab Has an Obvious Impact on the Stress Index of the Composite Pavement Structure. Strengthening the Interfacial Bonding Strength of the Overlay Can Improve the Stress State of the Composite Pavement Structure. Therefore, a Reasonable Interlayer Contact State Should Be Considered When Designing the Overlay.

Keywords

Epoxy Asphalt Concrete; Interlayer Contact State; Finite Element Analysis