地下机动车道空气质量标准和设计通风量计算方法

Air quality standard and calculation method of designed ventilation rate in underground vehicle passages

分析了机动车排放的主要污染物,探讨了地下机动车道可借鉴应用的空气质量标准。通过分析机动车在地下车道内的运行特点,研究了地下车道的分类及不同分类下的通风量计算指标。给出了地下车道设计通风量的计算公式,通过实例论证了地下空间采用稀释污染物计算方法的必要性。

Analyses the main emission pollutants from vehicles and discusses some air quality standards which could be used for references.By analysing moving characters of vehicles in underground passages,studies the category of underground vehicle passages and air quality indexes in different occasions.Provides the formula of designed ventilation rate in underground vehicle passages and confirms the necessity of this pollutant dilution method by a calculation example.