双活塞地铁车站活塞风道过风面积研究  

Study on the Passage Area of the Piston Air Duct in a Double Piston Subway Station

作　　者：潘正海 PAN Zhenghai(Wuxi Metro Construction Co.,Ltd,Wuxi Jiangsu 214000 China)

机构地区：[1]无锡地铁建设有限责任公司,江苏无锡214000

出　　处：《江苏建筑》2024年第5期55-58,62,共5页Jiangsu Construction

摘　　要：为研究双活塞地铁车站活塞风道最小过风面积,文章以无锡地铁某车站隧道通风系统为例,模拟不同过风面积下的隧道温度、阻塞工况下风速及温度、火灾工况下风速、区间隧道通风换气量、区间隧道压力变化率差异,得出在给定边界条件下,活塞风道最小过风净面积为14.5 m2,结论可供工程实际参考。To study the minimum air passage area of the piston air duct in a double piston subway station,this paper takes the ventilation system of a tunnel in Wuxi subway station as an example.It simulates the tunnel temperature under different air passage areas,wind speed,and temperature under blocking conditions,wind speed under fire conditions,ventilation exchange rate in interval tunnels,and differences in pressure change rate between zones.It is concluded that under given boundary conditions,the minimum net air passage area of the piston air duct is 14.5 m2,which can be used as a reference for engineering practice.

关 键 词：隧道通风 数值模拟 最小过风净面积 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]