沥青路面温度场数值预估模型

A Numerical Temperature Prediction Model for Asphalt Concrete Pavement

为了准确预估在环境因素作用下沥青路面的温度分布状况,根据热传导基本理论,建立了沥青路面温度场数值预估模型,并使用有限差分方法对其求解.为了验证该模型的精度,在全国多个地区设立观测站,埋设温度传感器,实测沥青路面温度分布数据并收集与其相关的各种气象数据,如气温、太阳辐射、风速等.结果表明,模型可以较为准确地预估不同地区、不同季节沥青路面内的温度分布状况.

In order to accurately predict the temperature distribution in asphalt pavement under various environmental impacts, a numerical temperature prediction model is established on the basis of the heat transper theory and solved by the finite difference method. Several pavement sites in different regions across the nation were installed with thermal thermocouples to measure the temperature distributions inside the pavement. Some related environmental data, such as air temperature, solar radiation and wind speed etc. were recorded too. This numerical prediction model proves very effective in predicting the temperature distribution in all regions and seasons.