中文摘要：

为研究发热电缆路面融雪化冰机理，采用有限元分析方法对路面温度变化进行研究，得到不同气候条件下道路表面及结构层内的温度分布、升温规律．将数值模拟结果与实验测量结果进行比较，发现二者吻合较好．研究表明：依据北京地区近10a的气温数据，采用铺装功率为250～350w／m^2的发热电缆可满足北京地区路面融雪化冰的要求．

英文摘要：

In order to study the principle of the road surface deicing and snow-melting system where electric heating cable is used, finite element method is adopted for calculating the change of road surface temperature. The temperature distributions and changes of road surface and inside are computed under different environmental conditions. By comparing the numerical results and experimental data, it has been found that simulated results are in good agreement with those experimental data. The results shows that based on the analyses of weather data especially the temperatures in the past ten years, that the heat cable power range from 250 to 350 W/m^2 per unit surface can meet the requirement of deicing and melting snow for roads and streets surface in Beijing.