【摘要】 本文叙述了新水泥混凝土路面设计规范对旧规范的修订内容,新规范着重在可靠度设计方法、交通分析、材料设计参数、路面组合构造要求和应力分析方法等方面提出了改进,并通过算例计算来对比分析新旧公路水泥混凝土路面设计规范的差别。对比分析认为,在交通量较大条件下,新规范会适当增大路面厚度,从而有利于预防路面早期破坏;在交通量较小条件下,新规范合理减小路面厚度,以减少工程造价,最终在路面经济性与耐久性之间达到更好的平衡。更多还原

【Abstract】 Firstly, the paper dictates the modifications in the new “Specifications of Cement Concrete Pavement Design for Highway”, and the new specification have some improvements in the method of reliability design, traffic analysis,design parameter of material,requests of pavement structure and the method of stress analysis contrasting with the old specification. Then, an example is given to analyze the differences of the pavement depthcalculation between these two specifications. The result shows that the new specification increase the pavement depth for heavy traffic in order to prevent early destroy of pavement, while for light traffic the new specification decrease the pavement depth to reduce the project cost.更多还原