黄河公轨合建隧道火灾人员疏散安全研究

Research on the evacuation safety of Yellow River road-rail tunnel

以济南黄河公轨合建隧道为研究对象,分别对公路隧道和轨道交通发生火灾时,纵向疏散楼梯和横向疏散门的间距对人员疏散时间的影响进行分析,获得必需疏散时间。结果表明:疏散楼梯间距为60m和75m时,均满足安全疏散要求;轨道交通发生火灾,在通风有效情况下,人员可用安全疏散时间TASET为2700s;疏散门间距为150m和300m时,均满足安全疏散要求。从安全和运行成本考虑,推荐疏散楼梯间距设置为75m、下层疏散门间距设置为300m。

Taking the Jinan Yellow River road-rail tunnel as the research object,the impact of the distance between the vertical evacuation stairs and the horizontal evacuation door on the evacuation time of the people in the case of road tunnels and rail transit fires was analyzed,and the necessary evacuation time was obtained.The results show that when the distance between any two evacuation stairs is 60 m and 75 m,it meets the requirements for safe evacuation.When a fire occurs in rail transit,the available safe evacuation time is 2700 s under effective ventilation.When the distance between any two evacuation doors is 150 m and 300 m,it meets safety evacuation requirements.Considering safety and operating costs,it is recommended to set the distance between the evacuation stairs as 75 m and the distance between the evacuation doors of the lower storey as 300 m.