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车辙是由于沥青路面的永久变形所引起的,它形成于高温期间。在高温条件下,沥青混合料表现出明显的粘弹性特征,鉴于路面材料的这一特性,本文以线性粘弹性理论为基础对沥青路面的永久变形进行研究,并与具体的试验路相结合,从而建立起一种预估方法,预估各种路面结构在不同环境条件下经过不同轮载作用次数后所产生的车辙量,为设计人员提供一个设计方案比选的取舍标准,也为今后将建立的新的设计方法提供一种车辙的理论计算方法。
Rutting is caused by the permanent deformation of asphalt pavement, which forms during high temperatures. In the high temperature conditions, the asphalt mixture shows obvious viscoelastic characteristics. In view of this characteristic of pavement materials, this paper studies the permanent deformation of asphalt pavement based on the theory of linear viscoelasticity, and combined with the concrete test road, So as to establish a prediction method to predict the rutting amount of various pavement structures under different environmental conditions after different numbers of wheel cycles and provide designers with a selection criteria for design alternatives, The new design method developed provides a theoretical calculation of rutting.