隧道内的空气污染,既造成对人体的危害,又影响行车安全。当CO等含量增加时,会对人体产生不同程度的中毒症状,甚至危及生命。另外,污染空气中的烟雾会影响能见度,烟尘含量达到一定程度后,可使能见度下降到妨碍行车安全的程度。因此,隧道通风主要对CO、烟雾和异味进行稀释。本文详细阐述了隧道通风设计的计算过程,供广大工程技术人员参考。 Air pollution inside the tunnel not only causes harm to the human body but also affects traffic safety. When the CO and other content increases, the body will produce varying degrees of poisoning symptoms, and even life-threatening. In addition, the pollution of the air in the smoke will affect the visibility, dust content to a certain extent, can make the visibility down to prevent the degree of traffic safety. Therefore, tunnel ventilation primarily dilutes CO, smoke and odors. This paper elaborates the calculation of tunnel ventilation design process, for the majority of engineering and technical personnel for reference.