市域铁路地下隧道通风系统模拟分析

本文介绍了市域铁路地下隧道通风系统的原理,采用SES程序建立了某市域铁路两段地下区间正常工况,阻塞工况和火灾工况下的模型,模拟计算得出地下区间隧道内的温度随着里程的增加会逐渐降低,在车站位置处受到列车刹车排热和人员散热的影响而温度升高,且上下车人数对车站隧道内空气温度的影响比较大。阻塞和火灾工况下通过设置有效的隧道通风设施,可以保证隧道内的排热安全和乘客的疏散安全。

Simulation Analysis of Ventilation System of Underground Tunnel for Suburban Railway

This paper introduces the principle of the ventilation system of underground tunnel for suburban railway,and adopts the SES program established the normal working condition modle,the blocking model and the fire conditions modle for two railway underground tunnel.Then,it calculated that the temperature of the underground tunnel is gradually decreasing with the increase of the tunnel mileage,and the temperature is increasing at the station by train braking exhaust heating and personnel cooling,and the influence of the number of people getting on and off is larger.Under the blocking and fire condition,it can ensure the safety of heat evacuation and the safety of passengers by some effective ventilation facilities in the tunnel.