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为分析半刚性基层沥青路面基-面层间结合条件对路面结构受力性能的影响,采用Abaqus有限元软件分析了层间完全连续和摩擦接触时路表弯沉、结构层各向水平拉应力、剪应力等的分布规律,通过正交车辙试验研究了不同层间结合条件对路面路用性能的影响。研究结果表明:层间接触不良易诱发路面结构的竖向变形、裂缝、车辙等病害;路面结构设计时,合理设计基层强度、选择级配较好的下封层可以有效改善层间的接触条件,提高路面的使用性能。
In order to analyze the influence of the bonding conditions between the base and the surface of semi-rigid asphalt pavement on the mechanical properties of the pavement, Abaqus finite element software was used to analyze the deflection of the road surface when the layers were completely continuous and frictional contact, and the horizontal tensile stress , Shear stress and so on. Through the orthogonal test, the influence of different bonding conditions on pavement performance was studied. The results show that the improper contact between layers can easily induce the vertical deformation, cracks and rutting of pavement structure. When the pavement structure is designed, the strength of the base layer is reasonably designed and the lower sealing layer with better grading can effectively improve the contact conditions between layers , Improve the performance of the road.