Study On Regional Emergency Evacuation In Dangerous Chemicals Gas Leakage Accident

Regional emergency evacuation is a complex problem. It has the features:large area, a number of evacuees, Etc. At present the emergency evacuation research focuses on building internal evacuation, and the research on regional evacuation are mainly concentrated in traffic evacuated, but people seldom consider the regional emergency evacuation. With the acceleration of China's urbanization, originally the chemical enterprises gradually by suburban cities, they close to residential or schools, and builded early, equipment aging, may cause all kinds of accidents. The gas leakage accidents often happen and can make evacuation of lots of people. So the study on gas leakage accident emergency evacuation is very necessary. But how to scientifically choose the temporary shelter, is the guarantee of regional emergency evacuation.In order to solve the above problems, this paper made a in investigation in Xi'an a chemical enterprise, with the simulated object of the factory and adjacent to the neighborhood and road, with the evacuees, including the workers, residents and pedestrians. Make the questionnaire survey to three simulation objects, and analyze the results with SPSS statistical. Using Building EXODUS to evacuate three types of people. The conclusion follows:(1) The related factors with the workers psychology and behavior in gas leakage accident have 12 points, according to the correlation is clear for the size of the position or stored inside for nature, gender, whether there is known as refuge. The related factors with the citizens psychology and behavior in gas leakage accident have 10 points, according to the correlation degree of education for size, accident, age, home of whether there is action inconvenience. The related factors with the pedestrians psychology and behavior in gas leakage accident have 3 points, including experienced, passing the enterprise frequency, and gender.(2) Through the simulation for emergency evacuation of three areas respectively, get the percentage of poisoning death in every area: factory 14%, residential areas 10%, Road 0.(3) In the shelter at different points of simulated position respectively, get the best position for the shelter in total length 600m.Based on the basic case of a chemical enterprises, in the simulations combined with the required evacuees questionnaire results, to simulate the simulation has been greatly improved, based on the regional emergency evacuation plan is feasible in decision making, the results of the evacuation of regional contingency plan for science and scientific planning of urban asylum point provides corresponding technical support.