北京市铁路建设对城市局地热环境的影响

Influence of Railway Construction on the Local Thermal Environment in Beijing City

为研究铁路建设对城市局地热环境的影响 ,分别选择了北京西站、北京南站、北京站和北京北站为试验对象 ,通过在各车站周边布点测量温度 ,分析了各车站周围温度场的分布规律及其影响因素。结果表明 :既有铁路车站上空存在迷你热岛 ;绿地和水面对减弱局地热场作用明显 ;在对城市区域热环境影响中单一因子的影响作用得以凸现。

In order to know the influence of railway construction on the local thermal environment, we select the Beijing Railway Station, the Beijing West Railway Station, the Beijing North Railway Station and the Beijing South Railway Station as experimental subjects. Based on the observation data, the distribution of every station environment temperature field is analyzed in detail. The influence of environmental factors is approached. So it draws the following conclusions:There are the mini heat islands on the railway stations. The greenbelt and the waters in the urban area can weaken the local temperature. The single environmental factor has a great effect on the local thermal environment.