双停车线地铁站中射流风机作用的模拟研究  

Simulation Study on the Effect of Jet Fan in Double Parking Line Subway Station

作　　者：林宇 贾兆萍 LIN Yu;JIA Zhaoping

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]绍兴市轨道交通集团有限公司,浙江绍兴312099

出　　处：《浙江建筑》2025年第2期45-50,共6页Zhejiang Construction

摘　　要：设有双停车线的地铁车站中,如采用纵向排烟,一般需要在隧道中设置射流风机均衡气流。为研究射流风机在配线区所发挥的具体作用,并在设计阶段明确风机设置的位置与数量、隧道中隔墙的设置与否,需要进行必要的模拟计算。在此以某地铁工程中带有双停车线的车站为研究对象,基于地铁隧道通风模拟软件STESS,对该站配线区不同位置的三种火灾工况展开模拟和结果分析。不同的风机开启模式对隧道内烟气的流向有着正向或负面的作用,为保证人员疏散路径上的风速要求和无烟要求,模拟中确定了该站射流风机的最佳设置位置和数量,并研究了前后站点的TVF风机替代射流风机的可行性。隔墙的设置对烟气蔓延和回流有很大的影响,模拟结果显示了断开和完全取消中隔墙对纵向排烟过程中风量和烟气控制的作用。If longitudinal smoke exhaust is adopted in subway station with double parking lines,jet fans are generally required to be installed in the tunnel in order to balance the airflow.To research the specific role of jet fans in the sidings area and clarify the location and quantity of fans,as well as the setting of partition walls in the tunnel during the design phase,necessary simulation calculations need to be carried out.Taking a station with double parking lines in a certain subway project as the research object,based on the subway tunnel ventilation simulation software STESS,simulation and result analysis were carried out on three fire conditions at different locations in the sidings area of the station.Different fan opening modes have a positive or negative effect on the flow of smoke inside the tunnel.In order to ensure the wind speed and smoke‑free requirements on the evacuation path,the optimal location and number of jet fans were determined in the simulation,and the feasibility of replacing jet fans with TVF fans at the front and rear stations was studied.The setting of the partition wall has a significant impact on the spread and reflux of smoke,and the simulation results show the effect of the disconnection and complete cancellation of the middle partition wall on air volume and the control of smoke during the longitudinal smoke exhaust process.

关 键 词：双停车线 射流风机 纵向排烟 隧道通风模拟 烟气回流 

分 类 号：U448.21[建筑科学—桥梁与隧道工程]