无单元Galerkin方法在沥青混凝土路面车辙分析中的应用

运用无单元Galerkin方法对沥青混凝土路面的车辙深度进行了计算,分析了路面的不同结构类型、荷载大小和中面层模量及厚度对路面抗车辙性能的影响。在半刚性路面模型基础上,分析了不同节点布置方案对计算结果的影响。计算结果表明,半刚性路面的抗车辙性能较好,荷载和不同的中面层材料对沥青混凝土路面抗车辙能力有较大影响。因此,为了有效地防止车辙的产生,应该在路面设计时对中面层的抗车辙能力予以考虑。

Application of Element-Free Galerkin Method to Asphalt Concrete Pavement Rutting Analysis

In this paper,the depth of rutting of asphalt concrete pavement is calculated using the Element-Free Galerkin method.And the influences of different types of structure,load,module and thickness of the middle course on anti-rutting performance of the pavement are analyzed.Then based on the model of the semi-rigid pavement,the influence of different distribution of nodes on the numerical results is analyzed.The numerical results show that the semi-rigid pavement has a better ability of rutting resistance;load and material of middle course can affect the depth of rutting.In order to avoid rutting,the ability of rutting resistance of middle course should be taken into consideration in pavement design.