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针对东北地区高速公路沥青路面状况,依据东北地区道路冻区、交通等级、土基强度等级,采用有限元对路面结构应力、应变及弯沉等指标进行了力学分析,提出了不同冻区、不同干湿类型、不同土质和不同冻深条件下抗冻垫层厚度设计方法及推荐值,最后给出东北地区高速公路沥青路面典型结构。
According to the condition of asphalt pavement in the highway in Northeast China, the mechanical analysis of the pavement structure stress, strain and deflection is carried out by finite element method according to the frozen road, the traffic grade and the strength of the soil foundation in Northeast China. Dry-wet type, different soil and different freezing depth under the condition of the design method of freezing pad thickness and recommended values, and finally gives the typical structure of highway asphalt pavement in Northeast China.