地铁隧道CO2浓度的实测分析
Field measurement and analysis of CO2 concentration in underground railway tunnels
摘要：
以CO2浓度作为空气质量的评价指标，对闭式系统、屏蔽门系统这两种形式的地铁隧道内的CO2浓度进行了现场测试，并详细分析了隧道内CO2浓度的分布及变化规律。研究表明，闭式系统地铁车站的CO2浓度很大程度上决定了隧道内的CO2浓度，屏蔽门系统地铁隧道内的CO2浓度则与室外非常接近。
关键词：地铁隧道,空气质量,CO2浓度,实测,闭式系统,屏蔽门系统
Abstract：
To test the air quality in underground railway tunnels of two typical systems—close mode operation and platform screen doors, conducts two field measurements by detecting the CO2 concentration. Studies the distribution and the variation of the CO2 concentration in details. The research result shows that the CO2 concentration of the tunnel is determined by the CO2 concentration of the station in close mode operation, while it is very close to the outdoor CO2 concentration in platform screen door system.
Keywords:underground railway tunnel, air quality, CO2 concentration, field measurement, close mode operation system, platform screen door system