Abstract: In order to study the structure temperature behavior of asphalt pavement in high cold area, the influence of meteorological parameters on the temperature distribution of asphalt pavement were analyzed, and the influences of the pavement structural type, the structural layer thickness and the interlayer condition on the pavement temperature and its stress distribution, were discussed by using ABAQUS software based on the orthogonal analysis method. The temperature of asphalt layer in different depth was predicted via the lag attenuation air temperature model. The results show that the total solar radiation and daily average wind speed have significant influence on pavement temperature, but this influence trend has no relationship with pavement structure type. The pavement temperature distribution is in small difference during low temperature period, but this difference is bigger in high temperature period. The maximum tensile & compressive stress of pavement layer in low atmosphere temperature is greater by 5 to 8 times than in high atmosphere temperature. Graded gravel base has good adaptability to temperature variation, which is the first choice of base layer materials in cold regions. The temperature forecast of pavement in cold region is carried out by using the model of delayed attenuation with sound accuracy in condition of high temperature, but with poor accuracy in low temperature, so the applicability of this model needs further improvement.

Key words: highway engineering, asphalt pavement, pavement temperature distribution, thermal stress, meteorologic parameter, interlayer condition, temperature prediction

摘要： 为研究高寒地区沥青路面结构温度行为，以ABAQUS软件为计算平台，结合正交试验方法及滞后衰减气温模型，进行了气象参数对沥青路面温度场影响及其参数敏感性分析，讨论了结构类型、结构层厚度及层间状态等因素对路面温度场及温度应力分布状况的影响，预测了沥青面层不同深度温度日变化值。研究表明：日太阳辐射总量和日平均风速对路面温度具有显著影响，但其显著性与路面结构类型无关；结构层温度场低温时段差别较小，高温时段差别较大；低温下结构层最大温度拉压应力是高温下的5~8倍；级配碎石基层具有良好的温度变化适应性，是高寒地区首选的基层材料类型；采用滞后衰减气温模型进行高寒地区沥青面层温度预测，高温时精度较高，低温时精度较低，该模型的适用性有待进一步完善。

关键词: 道路工程, 沥青路面, 温度场, 温度应力, 气象参数, 层间状态, 温度预测