Study on influence of design parameters for emergency rescue station on personnel evacuation under train fire in railway tunnel
In order to explore the characteristics of personnel behavior during the evacuation process of emergency rescue sta-tion in the high-speed train fire,the smoke spread process in the emergency rescue station was determined by constructing a fire smoke spread model.Considering the dynamic interaction between the temporal and spatial distribution of smoke tempera-ture and the personnel evacuation process,an evacuation simulation model was established to analyze the influence of the de-sign parameters of emergency rescue station on the characteristics of personnel evacuation behavior.The results show that the smoke temperature and spread range in the downstream area of fire source in the emergency rescue station of train fire acci-dent are larger than those in the upstream area of fire source,and the personnel evacuation process in the downstream area is greatly affected.The width of platform in the emergency rescue station has little effect on the personnel evacuation efficiency.The change in the width of cross passage changes the traffic capacity of evacuation exit,and the change in the spacing of cross passage changes the evacuation movement distance,so the width and spacing of cross passage has great influence on the per-sonnel evacuation.The research results can provide suggestions for the civil structure parameters of evacuation facilities in e-mergency rescue stations.