铁道标准设计2016，Vol.60Issue(6)：89-94,99,7.DOI:10.13238/j.issn.1004-2954.2016.06.019
基于公路隧道内车辆对火灾影响数值研究
Numerical Simulation of Interaction of Fire and Vehicles in Road Tunnel
摘要
Abstract
Based on the project of Yangtze River Highway Tunnel, numerical simulation is conducted using FDS5. 0 to establish hypostatic tunnel model. The diffusing regularity of dome temperature and CO concentration at the height of 1. 7 m during tunnel conflagration are investigated under the condition of different heat release rate, length of the vehicle, blockage ratio and the distance between vehicles, the length of the nearby vehicles, blockage ratio of the nearby vehicles. Meanwhile, this paper also analyzes the sensitivity of the above mentioned six factors. Results show that tunnel dome temperature increases with the increase of heat release rate and blocking ratio, and decreases with the increase of the length of fire-catching vehicle; concentration of CO increases with heat release rate and the length of the vehicle, and decreases with increasing of the blockage ratio. Heat release rate and blocking ratio are the two major factors affecting the fire, and more effective management of the two factors is required.关键词
公路隧道/热释放率/阻塞比/敏感性分析/火灾/拱顶温度/CO浓度Key words
Road tunnel/Heat release rate/Blockage ratio/Sensitivity analyses/Fire/Dome temperature/Concentration of CO分类
交通工程引用本文复制引用
吴贤国,方伟立,姜洲,张立茂,刘文黎..基于公路隧道内车辆对火灾影响数值研究[J].铁道标准设计,2016,60(6):89-94,99,7.基金项目
国家自然科学基金(51378235) （51378235）
湖北省自然科学基金(2014CFA117) （2014CFA117）
武汉市科技计划(201334) （201334）
