中文摘要：

为了建立沥青路面设计新标准，针对沥青路面结构破坏特征，提出了沥青路面破坏状态的判别准则，通过多省区多路段广泛的交通量调查和路表弯沉检测，建立了容许弯沉与累计交通量的幂函数关系，揭示了沥青路面相对弯沉变化规律，据此提出了以设计弯沉为指标的沥青路面设计新标准，建立了沥青路面状态设计法。系统分析了现行沥青路面设计规范所推荐的弯沉综合修正系数计算公式的本质特征，指出了其存在的概念性错误，并给出了相应的改进方法。研究结果表明：状态设计法厘清了设计状态与破坏状态的概念以及二者的相互关系，从原理上统一了设计指标与材料参数的工作状态，对于结构失效界限不明显的沥青路面具有良好的适用性；弯沉综合修正系数是理论弯沉与实测弯沉相对偏差的定量描述，直接用理论弯沉或实测弯沉表示最为客观。

英文摘要：

In order to establish new design standards of asphalt pavement, aimed at the structural damage characteristics, the criteria for the damage of asphalt pavement were presented. Based on traffic volume survey and the deflection investigation into road surface of multiple sections in many provinces, the power function relationship between allowable deflection and cumulative traffic volume was established. The change law of the relative deflection of asphalt pavement was revealed. Using the design deflection as the design index, the new design standards of asphalt pavement were put forward. The state design method of asphalt pavement was also established. The essential characteristics of the combined correction coefficient for deflection in the current specifications for design of highway asphalt pavement were systematically analyzed. The concept mistakes were pointed out. The corresponding correction measures were suggested. The results show that the state design method can clarify the concepts of and the relationship between the design state and the damage state. The working conditions of the design index and material parameters are unified in the principle. This method has the better applicability and significant advantage for the asphalt pavement which doesn＇t have the obvious structure failure boundaries. The combined correction coefficient for deflection is the quantitative description of the relative deviation between the calculated deflection and the measured deflection, which can be most objectively described with the calculated deflection or the measured deflection.