中庭式地铁车站火灾安全疏散仿真研究

Evacuation Simulation of Atrium Metro Station in Fire Accidents

中庭式地铁车站在火灾工况下的行人安全疏散设计是地铁车站设计中的难题。为评价上海市轨道交通11号线南段临港新城站中庭式车站火灾安全疏散的性能,采用Legion行人仿真模型和FDS(火灾动态仿真器)开展了一系列的疏散仿真分析。在对各种行人参数调查、标定的基础上,建立了真实的Legion疏散仿真模型。然后根据预测客流和可能的火灾场景,对四种不同工况下的人员疏散进行了仿真分析和安全性评估,在此基础了提出了改善中庭式地铁车站火灾安全疏散性能的建议。

Evacuation in fire accidents is always a challenge during design of atrium metro stations,although such kind of metro station provides specious and bright environment for passengers with plenty of multi-level space.To evaluate the performance of evacuation system of Lingangxincheng Atrium Metro Station of Shanghai rail transit Line 11（south section）,a series of evacuation simulation are conducted through Legion Studio and Fire Dynamic Simulator（FDS）.The pedestrian modeling parameters are calibrated and the actual evacuation system is built up in Legion model first.Then,according to passenger demand and fire sceneries,four different evacuation scenarios within that model are analyzed in the simulations.Based on the analysis results,suggestions to improve the evacuation performance of atrium metro station are presented.