单向坡特长公路隧道通风方案研究

Study on Ventilation Scheme of an Extra-long Highway Tunnel with Unidirectional Slope

为确保某特长隧道通风系统的经济性及合理性,通过确定隧道的通风计算参数,结合工程特点,提出不同的通风系统设计方案,并从安全性、施工便利性、工期、总工程造价等方面进行了综合比选,提出了单向坡特长公路隧道通风的关键要点,探讨了竖井及斜井组合型式的适用性,利用右线隧道辅助排烟道实现了通风方案最优化。

In order to ensure that the ventilation system of a extra long tunnel is set up economically and reasonably, through determining the ventilation calculation parameters of the tunnel and combi ning with engineering characteristics, different ventilation system design schemes are put forward, and comprehensive comparison is made from safety, construction convenience, construction periodand total project cost, etc. The key points of ventilation in the unidirectional slope extra long highway tunnel is point out, the applicability of the combination type of shaft and inclined shaftis discussed, and the optimization of ventilation scheme is realized by using the auxiliary exhaust duct of the right tunnel.