地铁活塞风道风速及变化规律试验研究  

Field Measurement and Analysis of the Wind Speed of the Air Passage at the Airshaft for Subway

作　　者：张悦 张强 毕海权[2] 王君宜 Zhang Yue;Zhang Qiang;Bi Haiquan;Yang Xiao(Guangzhou Metro Design&Research Institute Co.,Ltd,Guangzhou,510010;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)

机构地区：[1]广州地铁设计研究院股份有限公司,广州510010 [2]西南交通大学机械工程学院,成都610031

出　　处：《制冷与空调（四川）》2020年第4期463-467,共5页Refrigeration and Air Conditioning

摘　　要：列车在隧道内运行产生的活塞风随列车运行呈现有规律的周期性变化,由于目前列车运行速度高且行车密度高,活塞风对隧道内设备及活塞风道内的设备产生长期的作用,可带来不可忽视的安全问题。以广州地铁某站及某中间风井为研究对象,对地铁风道内的风速进行了现场测试,得到了地铁站及区间风井风道内的风速变化规律。结果表明:该站出站端活塞风道内的正、负风速最大幅值均低于进站端;相比于车站进出站端活塞风井,中间风井内风道的风速更高,最大正风速为5.7m/s,最大负风速为7m/s;区间左右线中间风井活塞风道内风速变化周期和变化规律一致,但风速幅值差别较大。The piston wind generated by the train running in the tunnel present a regular periodic change with the train operation.Due to the higher speed of trains and higher operating frequency,the piston wind has a long-term effect on the equipment in the tunnel and the air passage.It brings safety issues that cannot be ignored.For A Station and the middle airshaft during two stations along Guangzhou Metro,the velocity at the airshafts is tested and the change characteristics are obtained.The results show that the maximum amplitudes of the wind speed of the airshaft at the exit are lower than those at the entrance for the Station;compared with the airshaft set at the station,the wind speed in the middle airshaft is higher,with a maximum positive value of 5.7 m/s and a maximum negative value of 7 m/s.The change trend of the wind speed of the middle airshaft at the right and left track line is the similar,but the amplitudes are the different.

关 键 词：现场试验 地铁 活塞风井 风速 

分 类 号：U451[建筑科学—桥梁与隧道工程]