Main Article Content
To facilitate the construction of underground powerhouse, dam and other areas and the operation and management of power station, a considerable quantity of underground traffic tunnels need to be built. These traffic tunnel groups are of considerable quantity, with complex trend, large bends and large slopes. The smoke concentration, harmful gas accumulation, ventilation rate and fire smoke exhaust in the tunnels are key problems to be solved in the design and operation of tunnel ventilation system of underground complex traffic tunnel groups. At the same time, the airflow direction and velocity in the tunnel are uncertain, so it is difficult to form effective airflow organization by using conventional ventilation design methods. To solve the ventilation design of large-scale complex underground traffic tunnel groups, this study simulates ventilation design airflow organization of large-scale complex underground traffic tunnel groups by FMK simulation based method to obtain ventilation characteristics and design key parameters of large-scale complex underground traffic tunnel groups, which provides reference for engineering design and practical application.