以某特长海底隧道工程为例,研究火灾下纵向诱导通风+侧向集中排烟模式对烟气的控制效果.设外车道、中间车道、内车道发生火灾的场景,分析隧道坡度-3%、0%、3%情况下下隧道内的烟气蔓延情况,测出隧道纵向温度分布、烟气速度矢量分布、能见度分布,验证了纵向诱导通风+侧向集中排烟系统的有效性,确定了适用于不同坡段隧道的烟气控制措施.%Taking a supper long seabed tunnel as example, the smoke control performance by longitudinal induce ventilation+lat?eral centralized smoke extraction under fire were researched. Sce?narios of fire at outside traffic lane, middle traffic lane and inside traffic lane were set and the smoke spread in tunnel under slope of-3%, 0% and 3% were analyzed. The longitudinal distribution of temperature, velocity vector and visibility in tunnel were obtained and the effectiveness of longitudinal induce ventilation + lateral centralized smoke extraction was verified. The smoke control mea?sures of tunnel with different slope were obtained.
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