由于路面体系属于不确定型 ,因此将概率方法应用到路面设计中是使原有确定型设计方法变得更趋合理的必要途径。以现有的公路水泥混凝土路面确定型设计方法为基础 ,基于 Westergaard自由边界板理论和 Miner疲劳积累破坏假定建立了力学模型 ,从而提出了公路水泥混凝土路面概率型设计方法 ,并编制了相应的可靠度计算软件 (PRDHCP) ;同时还分析了主要设计参数的变异性对设计可靠度的敏感性 Because the pavement system is uncertain, applying the probabilistic method to pavement design is a necessary way to make the original deterministic design method more reasonable. Based on the existing deterministic design method of highway cement concrete pavement, a mechanical model is established based on the Westergaard free boundary plate theory and Miner fatigue accumulation damage assumption, and a probabilistic design method of highway cement concrete pavement is proposed and corresponding reliable Degree of calculation software (PRDHCP); also analyzed the main design parameters of the variability of the sensitivity of the design reliability