抗车辙的沥青路面设计问题探讨

按照现行沥青路面和沥青混合料设计法所设计的路面,难以保证道路在交通荷载、气候条件的共同作用下不出现过量车辙。而采用车辙试验以及利用三维有限元程序计算确定出的材料永久变形参数来进行车辙预估,既能够避免单轴蠕变试验的不足,又能实现路面结构设计与材料组成设计一体化。

Anti-rut Asphalt Pavement Design Problems

The pavement designed according to the actual design methods for asphalt pavement and asphalt mixture is difficult to avoid that excessive rut appear on the pavement under the traffic loads and weather condition.Adopting rut test and permanent deformation parameters of materials confirmed by 3D finite element program calculation to forecast the rut not only can avoid the deficiency of uniaxial creep test but also can achieve the integration of pavement structure design and material composing design.