地铁车站轨行区热环境实测研究与分析
Experimental research and analysis of thermal environment in track area of subway station
摘要：
以上海某地铁车站轨行区为研究对象，对轨行区的空气温度、热流密度进行实测，得到了实际地铁车站轨行区气温随高度和季节的变化规律。结果表明，车站轨行区不同高度处气温随季节温度波动而变化，主要受列车产生的热量和室外气温的影响，其中列车产生的热量与运营早晚高峰密切相关，车厢顶部冷凝器的排热使夏季区间隧道气温相比其他季节上升更为明显。此外，通过分析比较轨行区与区间隧道的热流密度随季节的变化趋势，得到了不同季节轨行区与区间隧道的土体的蓄放热情况。
Abstract：
Taking the track area of a subway station in Shanghai as the research object, the air temperature and heat flux in the track area are measured, and the temperature changes with height and season are obtained. The results show that the air temperature at different heights of the subway station track area varies with seasonal temperature fluctuations, which is mainly affected by the heat generated by the train and the outdoor air temperature. The heat generated by the train is closely related to the morning and evening peak of operation, and the heat discharged by the condenser on the top of the carriage makes the tunnel temperature rise more significantly in summer compared with other seasons. In addition, by analysing and comparing the variation trend of heat flux between the track area and the tunnel with the seasons, the soil heat storage and release of the track area and the tunnel in different seasons are obtained.
Keywords:subway station; track area; tunnel; thermal environment; air temperature; heat flux