本文主要分析影响柔性路面可靠性的几个基本问题。结果表明,以弯沉(应力)指标表达的状态函数与以轴载次数表达的状态函数在理论上一致,两者的计算结果误差很小。基本变量(参数)的概率分布形式,对柔性路面可靠性的影响较为显著,Monte Carlo模拟计算次数不应少于300次。 This article mainly analyzes several basic problems affecting the reliability of flexible pavement. The results show that the state function expressed by the deflection (stress) index is theoretically consistent with the state function expressed by the number of shaft loadings, and the error between the two results is small. The probability distribution of the basic variables (parameters) has a significant impact on the reliability of the flexible pavement. The number of Monte Carlo simulations should not be less than 300 times.