摘要
利用改进的车辙试验机进行沥青路面结构全厚度车辙试验．根据不同温度、荷载及其组合试验条件下的试验结果分析车辙发展的规律，探讨全厚度车辙试验适宜的评价指标，并建立车辙评价指标与试验条件之间的关系．结果表明：高温与重载联合效应导致沥青路面车辙急剧发展；全厚度车辙试验可作为常规沥青混合料车辙试验的补充，对沥青路面结构的整体抗车辙性能进行检验，其评价指标可沿用单层沥青混合料车辙控制的指标，即以车辙试验45～60min时的车辙变形计算全厚度车辙动稳定度；半对数回归模型能很好地反映全厚度车辙评价指标与试验温度、试验荷载及试件厚度之间的关系．
An improved wheel rutting test machine was used in the total thickness rutting tests of as- phalt pavement. According to the test results obtained in conditions of different temperature, load and the two synchronous, the rutting developing rules were analyzed. The appropriate evaluation index of total thickness rutting tests was discussed and the relationship between rutting evaluation index and test conditions were established. The results show that the combined effect of heavy load and high temperature synchronously lead to rapidly development of asphalt pavement rutting~ the total thick- ness rutting tests could complement routine bituminous mixture rutting tests to verify the entire resist rutting capacity of asphalt pavement structure layers, its evaluation index could follow the index of routine bituminous mixture rutting tests, which calculate total thickness rutting dynamic stability by the rutting deformation from 45 to 60 min of rutting tests~ a semi-logarithmic regression model could well reflect the relationship between evaluation index of total thickness rutting tests and test tempera- ture, test load and the thickness of the specimen.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第11期37-40,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51278203)
关键词
沥青路面
全厚度车辙
温度荷载
联合作用
评价指标
asphalt pavement
total thickness rutting
temperature and load
combined effect
evalu-ation index
