道路隧道开口自然通风研究

Study on Openings of Road Tunnel for Natural Ventilation

隧道通过自然通风口能否达到有效换气或排气,与隧道内行车状况、室外大气环境以及洞内热压等因素有关。结合相关科研,开展了探索隧道自然通风口通风有效性研究,对上海北虹路下立交隧道气流量进行现场监测和模拟仿真计算,分析了隧道开口自然通风的功效,并提出了相应的建议。

Whether the openings on road tunnel realize the effective air exchange or extraction is related to the driving condition in the tunnel, atmospheric environment, stack pressure in the tunnel and etc. Combined with relevant scientific research, the effectiveness of tunnel natural ventilation is studied. The field monitoring and simulation calculation of air flow in Shanghai Beihong Road Tunnel are carried out. The natural ventilation effect of tunnel openings is analyzed and the related suggestions are given.