摘要
根据GB 51298-2018《地铁设计防火标准》的要求,当对地下区间进行纵向控烟时,应能控制烟流方向与乘客疏散方向相反,而在面临区间隧道车中火灾这一极致情况时,纵向通风无法有效保证所有乘客疏散时处于洁净区。通过理论分析,结合三维数值模拟,忽略土建因素制约,基于保障区间疏散平台洁净区这一理念,探究了区间隧道防灾气流组织的新模式,并对比了传统模式的防烟效果,给出了应对区间隧道车中火灾的一种新思路。
According to GB 51298-2018 Standard for fire protection design of metro,when longitudinal smoke control is carried out in underground section,the direction of smoke flow should be controlled opposite to the passenger evacuation direction,and when facing the extreme situation of fire in the middle of the train,longitudinal ventilation cannot effectively ensure that all passengers are in a clean zone during evacuation.Through theoretical analysis,combined with the three-dimensional numerical simulation,ignoring the constraints of objective civil construction factors,based on the concept of ensuring the clean zone of the evacuation platform in the interval,presents a new model of air distribution for disaster prevention in the interval tunnel.Compares the smoke prevention effect with the traditional mode,and gives a new idea to deal with the fire in the middle of the train.
作者
鱼晟睿
邓保顺
郭永桢
高然
Yu Shengrui;Deng Baoshun;Guo Yongzhen;Gao Ran(China Railway First Survey&Design Institute Group Co.,Ltd.,Xi'an,China)
出处
《暖通空调》
2021年第4期51-54,17,共5页
Heating Ventilating & Air Conditioning
关键词
车中火灾
疏散平台
洁净区
防烟
加压送风
fire in the middle of the train
evacuation platform
clean zone
smoke prevention
pressurized air supply
