Research On Accident Risk Analysis And Emergency Evacuation Of Personnel In The Terminal Building Of West China Airport

With the rapid development of China’s civil aviation industry,the increasing number of passengers gathered in the airport terminal is increasing.Once a sudden accident or emergency treatment is not appropriate,it will bring huge losses to life and property and cause bad social impact.Therefore,in order to ensure the safe operation of the terminal,it is essential to conduct accident risk analysis and emergency evacuation research for the terminal.Taking the terminal of Huaxi airport as the research background,this paper systematically identifies the accident risk of terminal building,puts forward the risk evaluation index system of the terminal building fire accident,establishes a multilevel entropy weight extension evaluation model,and uses this model to evaluate the risk of the terminal building in Huaxi airport,and puts forward the risk control measures according to the evaluation result.In view of the emergency evacuation of the station building in the case of fire,the simulation model of fire emergency evacuation in Huaxi airport is set up,the evacuation characteristics of the terminal building under different passenger traffic levels are analyzed,and the optimization scheme is proposed for the problems existing in the evacuation simulation,and the simulation model is rebuilt to verify the optimization case.The main contents and results of this paper are as follows:(1)The system safety analysis method is used to carry out the accident risk analysis to the terminal building,and the maximum risk degree of the fire accident is obtained.At the same time,the fire accident of the terminal building is studied.The fire risk sources are identified from four factors,such as human,facilities,environment and management,and the risk evaluation index system and evaluation index classification standard of the terminal building fire accident are put forward..(2)The multilevel entropy weight evaluation model of the terminal building fire accident is built to evaluate the fire risk of the terminal building of Huaxi airport,and the comprehensive risk level of the station building is low I risk,the comprehensive characteristic value j* is 1.45,that is,the fire possibility of the terminal building is small and the risk is acceptable,and the first grade index is obtained.The influence degree of fire accident on the terminal is ranked as human > facility facilities > management > environment.The characteristic values are 1.81,1.47,1.46 and 1.30 respectively.(3)This paper simulates the evacuation scene under three different passenger flow levels in the terminal of Huaxi airport,and analyzes the evacuation capacity of the terminal building according to the pedestrian flow,density,speed and evacuation speed of the evacuation index,and obtains the peak period,the actual peak period and the flat peak period of the passenger flow of the terminal.The evacuation time in the scene is 343.3s,300.3s,269.8s,which all meet the 6min evacuation principle in the specification.For the three optimization schemes of the evacuation problem,the evacuation time is 21.8s,13 s and 53.5s respectively through the reconstruction model,which proves that the proposed optimization scheme is all effective,in which the scheme of increasing the temporary evacuation exit is optimal.