地铁正线隧道分岔段火灾烟气通风控制研究  

Study of Smoke Control in the Bifurcation Section of the Main Tunnel

作　　者：范登鑫 何磊[2] 雷波[1] 邓保顺[2] 郭永桢[2] Fan Dengxin;He Lei;Lei Bo;Deng Baoshun;Guo Yongzhen(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031;China Railway First Survey and Design Institute Group Co.,Ltd,Xi’an,710043)

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《制冷与空调（四川）》2021年第5期679-683,共5页Refrigeration and Air Conditioning

基　　金：陕西省重点研发计划(2018SF-393)。

摘　　要：分析了列车火灾发生在正线隧道分岔段的烟气控制方法,建立了典型地铁正线隧道分岔段模型,采用FDS软件进行数值计算,分别得到向正线隧道上、下游两种排烟方式下将烟气蔓延控制在临界状态所需的正线与联络线隧道通风风速。This paper analyzes the method to control smoke spread when train fire occurs in the bifurcation section of the main tunnel,and establishes the model of typical subway tunnel,then uses FDS calculating to obtain the velocity of the main tunnel and the connecting tunnel which are required to control smoke spread in critical state when the smoke is discharged to the upstream and the downstream of the main tunnel respectively.

关 键 词：地铁 隧道分岔段 火灾烟气控制 临界风速 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]