在地铁安全性分析中,人员安全疏散是一个关键的考核指标。笔者首先介绍基于规范的人员疏散设计、基于火灾工程学的性能化人员疏散设计思路及计算方法;以某市轨道交通S号线深埋车站为系统原型,通过人员疏散动力学模型对深埋车站的人员疏散过程(1 200人)进行计算机模拟;研究突发事件时,深埋站点内人员能否安全疏散。
Safety evacuation is a key factor that must be considered during metro safety analysis. This paper first introduces the thread and algorithmic method of occupants evacuation design in the construction of metros in China based on Code for Design of Metro and fire engineering-based occupants evacuation design. Then, by taking a metro line No. "S" in a cityg as an example, a simulation of 1 200 occupants evacuation process from deeply buried metro station (DBMS) by using occupants evacuation dynamic model is conducted so as to study whether the occupants can be safely evacuated from DBMS in case of fire.