基于FDS的隧道火灾人员疏散研究  

Research of Personnel Evacuation in case of Tunnel Fire based on FDS

作　　者：李卓[1] 王松涛 钱超[2] LI Zhuo;WANG Song-tao;QIAN Chao(CCCC First Highway Consultants Co.Ltd.,Xi'an 710075,China;Chang'an University,Xi'an 710064,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安市710075 [2]长安大学,西安市710064

出　　处：《公路》2025年第1期330-335,共6页Highway

摘　　要：为探究隧道火灾工况下的设计风速对烟气回流控制效果及人行横通道设计参数对火灾人员疏散的有效性,通过构建数值模拟仿真模型对隧道内烟气、温度、CO浓度及能见度的变化规律进行分析,并利用Pathfinder软件模拟不同人行横通道间距下人员的疏散时间,进而判断人员能否安全疏散。结果表明:在4.5 m/s火灾工况设计风速下,火源点上游能够保持良好的疏散环境;当人行横通道间距设置为250 m时,在交通堵塞的情况下人员无法进行有效疏散,存在安全隐患。In order to explore the effect of design wind speed on flue gas reflux control and the effectiveness of pedestrian passage design parameters on fire evacuation under the fire condition of the undersea tunnel,a numerical simulation model is built to analyze the change rules of flue gas,temperature,CO concentration and visibility in the tunnel.The Pathfinder software is used to simulate the evacuation time of people under different pedestrian crosswalk spacing,so as to judge whether people can evacuate safely.The results show that under the design wind speed of 4.5 m/s fire condition,the upper reaches of the fire source can maintain a good evacuation environment.When the distance between pedestrian crossings is set to 250 m,people cannot be effectively evacuated in the case of traffic jams,and there are potential safety risks.

关 键 词：隧道工程 火灾 FDS 人行横通道间距 疏散时间 

分 类 号：U458.1[建筑科学—桥梁与隧道工程]