借助三轴剪切试验研究了沥青混合料的抗剪性能,采用简单性能试验考察了剪切疲劳作用的影响以及抗剪强度参数与车辙之间的相关性。研究发现:级配类型、沥青用量、沥青性质及试验温度对混合料抗剪强度有显著影响,抗剪强度随着荷载作用次数的增加呈幂函数递减,抗剪强度参数与抗车辙性能之间呈良好的对数关系。结果表明剪切疲劳产生的流动变形是车辙产生的主要原因。 The shear resistance of asphalt mixture was studied by means of triaxial shear test. The effect of shear fatigue and the correlation between shear strength parameters and rutting were investigated by simple performance tests. The results showed that the type of grading, the amount of asphalt, the nature of asphalt and the temperature of test had a significant effect on the shear strength of the mixture. The shear strength decreased with the increase of the number of loadings, the power function decreased, and between the shear strength parameters and the rutting resistance A good logarithmic relationship. The results show that the flow deformation caused by shear fatigue is the main reason for rutting.