Numerical Simulation Study on Water Intrusion Process in Subway Station
The VOF model is combined with the k-ε turbulence model to build a numerical simu-lation model of the water invasion process,and the two different conditions of the tunnel flood gate be-ing opened or closed are studied.When the depth of water at the entrance is 50 cm and 30 cm,the process of flood invasion of subway station is analyzed.The simulation results show that the numerical simulation method is suitable for the study of water intrusion process in subway stations.Compared to 30 cm depth,flooding inside the station spreads and gathers faster at 50 cm depth.Under the condition that the flood door is opened,the rapid spread of flood intrusion in the early stage is relatively fast,and under certain conditions,the total flow of floodwater in the station can reach a balance.When the flood intrusion process reaches equilibrium,the flood water mainly accumulates at the platform level,and the total flow of the intrusive flood with a water height of 50 cm on the ground area is more,resulting in more serious consequences.When the flood door is closed,the early process of flood intrusion is less different from the open state,but the later flood is more trapped in the station hall level area.
万方数据
维普
