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轮辙是沥青道面的主要病害之一。目前对轮辙的研究主要集中在公路交通领域,对机场沥青道面轮辙问题研究较少。文中针对机场道面的特点,以蠕变模型为基础,利用ABAQUS有限元软件研究机场水泥混凝土道面沥青加铺层在不同温度、荷载及加铺厚度下轮辙随作用时间的变化规律,计算道面在不同条件下达到养护标准的轮辙寿命;并对侧向隆起轮辙出现时间及大小进行研究。结果表明,轮辙大部分发生在前期,占总量的1/2以上,并且轮辙随着温度、载荷及加铺厚度的增加而增加;温度对轮辙寿命影响最显著,50℃下寿命仅为40℃下的5%;可以预测不同时期不同条件下的轮辙形态,从而进行动态养护。
Asphalt is one of the major diseases of asphalt pavement. At present, the research on the rutting is mainly concentrated in the field of road traffic, and there are few researches on the rutting of the asphalt pavement in the airport. In view of the characteristics of airport pavement, creep model based on the use of ABAQUS finite element software airport asphalt concrete pavement asphalt overlay at different temperatures, loads and overlay thickness of the rut with the action time of change, calculate Pavement in different conditions to achieve maintenance standards of the life of the rut; and lateral bump rut appears to study the time and size. The results show that most of the rutting occurred in the early period, accounting for more than 1/2 of the total amount, and the rutting increased with the increase of temperature, load and overburden thickness. The temperature had the most significant effect on the rutting life, and the life at 50 ℃ Only 40% of the 5%; can predict different periods of different conditions, the rutting morphology, dynamic maintenance.