城市地下道路与地面交通污染综合作用研究

Preliminary Study on the Conjunct Influences of Pollutant from the Urban Underground Highway and Ground Traffic

通过三维数值计算的方法,对城市地下道路排放的污染物与地面交通干道产生的污染物扩散以后所发生综合作用的结果进行了模拟预测。结果表明:当城市地下道路的分段竖井或隧道口与地面交通干道或交通枢纽距离较近时,在有风的情况下,它们所排放的交通污染物会形成综合作用而加剧其污染范围和污染程度,对周围的高层建筑群造成较大影响。

Three-dimensional numerical simulation was performed to predict the environmental effect;it comes from conjunct influences of pollutants that is diffusing from the urban underground highway and surface car.The results show that when the subsection shaft and tunnel portal of the urban underground highway is close to urban main traffic roads in space or position,the pollutant from them may have conjunct influences in windy weather,and consequently with aggravating urban traffic pollution to near by high-rise building group.