地铁区间列车火灾及烟气影响因素分析

Analysis on the influence factor of metro tunnel fire and smoke

为了研究地铁区间列车火灾时隧道内烟气蔓延特性,划分火灾事故类型,归纳火灾事故特点,分析火灾影响因素。针对最不利火灾情形(区间列车中部火灾后迫停),实地调研区间隧道与列车特点,分析区间隧道烟气蔓延的影响因素及他们之间的关系。结果表明,烟气蔓延受多因素耦合作用和人为因素控制明显。

To study the smoke spread properties in metro tunnel fire in the middle part of section train, the fire accident patterns was classified, the fire characteristics were induced, and the influence factors of fire were analyzed. Aimed at most unfavorable condition （section train bursting into fire and forced to pull over）, the influence factors of smoke spread in section tunnel and their relationships was researched after field investigation into section tunnel and train features. The result showed that smoke spread is affected by multiple elements coupling interaction while is controlled appar ently by human factor.