分离式公路隧道火灾工况通风系统联动控制方案研究  

Research on the Linkage Control Scheme of Ventilation System under Fire Conditions in Separated Highway Tunnel

作　　者：杨继厅 郭洪雨 丁海洋 郑国平[2] 冯展 Yang Jiting;Guo Hongyu;Ding Haiyang;Zheng Guoping;Feng Zhan(Zhejiang Institute Of Communications Co.,Ltd.,Hangzhou 310030,China;College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江数智交院科技股份有限公司,杭州市310030 [2]浙江工业大学土木工程学院,杭州市310014

出　　处：《北方交通》2023年第12期58-61,共4页Northern Communications

基　　金：浙江省交通运输厅科研计划项目“基于交通大数据的特长公路隧道运营安全智慧管控技术研究”(2021068)。

摘　　要：分离式公路隧道采用横向疏散方式,为防止烟气通过横通道串流至相邻非火灾隧道,需要对左、右洞内的射流风机进行联动控制。首先,提出了3种联动控制方案;然后,采用火灾动力学软件FDS模拟了各方案时横通道内的风速、风向及烟气蔓延情况;最后,通过对比分析提出了最优方案,即火灾隧道开启火源上游风机,非火灾隧道相向开启横通道两侧风机以形成正压。研究结果为有关火灾工况下分离式隧道射流风机如何联动控制的问题提供参考。The horizontal evacuation method is adopted for the separated highway tunnel.In order to prevent smoke from flowing through the horizontal channel to adjacent non-fire tunnel,it is necessary to control the jet fan in the left and right tunnels through linkage.Firstly,three linkage control schemes are put forward;then the fire dynamic software FDS is used to simulate the wind speed,wind direction and smoke spread inside the horizontal channel for each scheme;finally the optimal scheme is put forward through the comparative analysis,that is,turn on the upstream fan of the fire source in the fire tunnel,and turn on the fans on both sides of the horizontal channel in opposite directions in the non-fire tunnel to form positive pressure.The research results provide reference for the issue of how to control the linkage of the jet fan in the separated tunnel under fire conditions.

关 键 词：分离式公路隧道 火灾 通风系统 联动控制 横通道 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]