Test resultsof the validation test.

Rutting tests were conducted to investigate the deformation resistance of asphalt mixtures under varying temperature and wheel load conditions. The significant effect of temperature and load on the deformation resistance of the asphalt mixture was investigated using ANOVA. Multiple deformation resistance indicators, including complex stability index (CSI), densification coefficient (D), shear index(1/E), and characteristic parameters (A, C, and A/C), were proposed based on the rutting deformation growth equation, and the correlation model between rutting deformation and each indicator was established. The validity and reliability of the deformation resistance indicators were verified and evaluated. The results demonstrated that both the dynamic stability and rutting deformation of the asphalt mixture are more sensitive to temperature than load at the 0.05 significance level. The correlation between the proposed indicators and rutting deformation were significantly stronger than that between dynamic stability and rutting deformation. Additionally, indicators A and A/C exhibit high level of correlation when predicting permanent rutting deformation. The proposed deformation resistance indicators can accurately predict the permanent rutting deformation in laboratory rutting tests, which can provide reference for studying long-time rutting deformation in laboratory rutting tests.为探究不同温度与轮载条件下沥青混合料的抗变形性能，本研究开展了车辙试验。采用方差分析（Analysis of Variance, ANOVA）考察了温度与荷载对沥青混合料抗变形性能的显著影响。基于车辙变形增长方程，本研究提出了多类抗变形指标，包括复合稳定指数（Complex Stability Index, CSI）、密实系数（Densification Coefficient, D）、剪切指数（1/E）以及特征参数（A、C与A/C），并建立了车辙变形与各指标间的相关模型，对上述抗变形指标的有效性与可靠性进行了验证与评价。试验结果表明，在0.05显著性水平下，沥青混合料的动稳定度与车辙变形对温度的敏感性均显著高于其对轮载的敏感性。所提出的各指标与车辙变形间的相关性，均显著强于动稳定度与车辙变形间的相关性。此外，特征参数A与A/C在预测永久车辙变形时展现出较高的相关性水平。本研究所提出的抗变形指标可精准预测室内车辙试验中的永久车辙变形，可为室内车辙试验中长期车辙变形的相关研究提供参考依据。