某过湖沉管法公路隧道通风排烟方案研究

Study on ventilation and smoke exhaust scheme of a highway tunnel through lake and immersed pipe

某过湖沉管法公路隧道位于国家5A级风景区,对空气质量、景观要求极高,隧道通风排烟方案设计为工程重难点。根据隧道内污染物浓度设计标准,计算隧道通风需风量,进而依据隧道工程线路设置及环评要求,提出3种可行性高的隧道通风排烟方案,从技术可行性、环境保护、经济性等多方面比选合理确定推荐方案,并给出推荐方案的设备配置,为该工程后续实施提供理论依据。

A highway tunnel through lake immersed pipe is located in 5A national scenic spot,which has high requirements for air quality and landscape,and the design of tunnel ventilation and smoke exhaust scheme is a major difficulty in the project.According to the tunnel design criteria pollutants concentration,calculate the tunnel ventilation air volume,and then on the basis of setting of tunnel project and the eia requirements,puts forward three kinds of high feasibility scheme of tunnel ventilation and smoke exhaust,from a technical feasibility,environmental protection,economy and other aspects than to choose reasonable recommendations,and give recommendation equipment configuration,provide theoretical basis for the subsequent implementation of this project.