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基于FDS和FDS+Evac软件对城市铁路隧道火灾情况下人员疏散及横向通道设置进行研究。应用FDS软件建立地下铁路隧道模型,对火灾场景进行数值模拟,确定了可用安全疏散时间(ASET)。利用FDS+Evac软件对不同横向通道条件下的人员疏散进行模拟和分析,确定必需安全疏散时间(RSET)。通过对比分析,确定了在最不利火灾条件下保证人员安全疏散的横通道设置方案。设置方案对于工程上同类型铁路隧道的横向通道设计具有一定的参考价值。
Based on the FDS and FDS + Evac software, the evacuation of the railway and the setting of lateral passage in the case of urban railway tunnel fire were studied. The FDS software was used to establish a model of a subway tunnel and the fire scene was numerically simulated to determine the available safety evacuation time (ASET). Using FDS + Evac software to simulate and analyze personnel evacuation under different transverse channel conditions to determine the necessary safety evacuation time (RSET). Through comparative analysis, the program of setting horizontal crossings to ensure the safe evacuation of personnel under the most unfavorable fire conditions was determined. The setting scheme has a certain reference value for the design of horizontal channel of the same type of railway tunnel in engineering.