沉管隧道单组排烟口合理开启角度研究  

Research on Reasonable Opening Angle of Single Set of Smoke Vents in Immersed Tube Tunnels

作　　者：田堃[1] 陈大飞[2] 蒋树屏[2] 谢耀华[2] 

机构地区：[1]重庆交通大学,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2015年第4期122-126,共5页Technology of Highway and Transport

基　　金：国家科技支撑计划项目(2011BAG07B05)

摘　　要：研究沉管隧道侧向集中排烟模式下排烟口的开启策略。采用数值模拟和物理试验2种手段,在保证流量均匀的前提下,通过调整各排烟口的有效过风面积,得出沉管隧道侧向排烟时不同排烟口开启组合工况下各排烟口的合理开启角度,为沉管隧道火灾工况下通风排烟策略的制定提供基础性数据。This paper studies the strategies for opening smoke vents in centralized smoke extraction mode on the side of immersed tube tunnels. The paper obtains reasonable opening angles of all smoke vents under the operating conditions of opening combination of different smoke vents during side smoke extraction of immersed tube tunnels by means of 2 means, i. e. numerical simulation and physical test on the premise of guaranteeing uniform flow and by adjusting effective wind pass area of all smoke vents to provide fundamental data for formulation of ventilating and extracting strategies of immersed tube tunnels under fire conditions.

关 键 词：沉管隧道 侧向排烟 排烟口 开启角度 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]