【摘要】 双向行车的隧道通风,除了维持洞内空气的卫生标准和规定的视距外,还必须有利于火灾时的排烟和人车避难,这在特长隧道是很困难的。我国已建成的4 km以上的双向行车隧道,均采用有平行导洞的纵向式通风,但此种方式缺点很多。文章吸取了国外经验,提出采用半横向式通风,并对此种通风方式提出了一些改进意见及推导了应用公式。更多还原

【Abstract】 Ventilation for tunnels with two-direction traffic should maintain sanitary standards and visibility dis-tances and also account for the smoke discharge and evacuation of people and cars during a fire,this is difficult for super-long tunnels.Longitudinal ventilation with parallel adit is normally adopted in China for tunnels longer than 4km with two-direction traffic,but this type of ventilation possesses many shortcomings.Author of the paper,as-similating experience of foreign countries,proposes to adopt semi-transverse ventilation with some modifications to this type of ventilation presented and relevant formulae deducted.更多还原