The Research Of Emergency Evacuation Under Poison Gas Diffusion In Large Stadiums

With Chinese comprehensive strength, rising international status, variety of world-class cultural, sports and exhibition have settled in China. Due to the increasing number of large-scale public social activities, the impact of expanding, large public social activities in a range of security issues have become increasingly prominent. Especially the terrorist attacks or extremists exploded were often happened in major international sporting, and by the limitations of large sports stadium evacuation passageway, when the terrorist attacks, explosions or other emergencies were happened it will bring enormous casualties, so more and more people begin to pay attention emergency management problems encountered such emergencies.According to the principles of the cellular automata model and the use of computer simulation technology, this thesis do the research for the emergency evacuation of the incident when the people suffered chemical and biological poison gas in large stadiums, the details as follows:First, the emergency evacuation and emergency management is discussed in this thesis then it described the current research status and focused on details about the composition and application of cellular automata model used in this thesis.Secondly, according to the model of cellular automata based on a large stadium this thesis made the simulation of occupant evacuation, then it analysed the influence factors of evacuation stadiums, and starting from the main factors of personnel density, it simulated the evacuation of personnel under different density conditions, and draw the corresponding conclusion.Again, this thesis added the gas factor and analysed the influence of gas on evacuation, get the new model under the gas diffusion. According to the cellular mobile rules of evacuation analysis this thesis illustrated the new rules under the impact of gas and the simulation framework. Simulated by the simulation framework and put forward the new formula of the probability of cellular mobile and make the corresponding conclusion. Finally, summarized the simulation result analysis, combined the characteristics of stadium in emergency evacuation, and put forward some strategies under emergency gas attacks and emergency measures, hoping to provide some basis for emergency evacuation in emergency management.