Earthquake Evacuation Simulation Study Of Luozhang Village In Kunming

With the growth of the city boundary of Kunming,many villages that originally belonged to the countryside became part of the Kunming,and they were called "urban villages".Due to the lack of corresponding planning and the necessary centralized management,there are many problems in the construction process about buildings of urban villages,which leads to the construction quality not being guaranteed and there is a great security hidden danger.In the event of an earthquake,these buildings will not only lead to the collapse of the destruction and severe earthquake casualties,also can cause difficult to estimate the economic losses.Computer simulation has become one of the hot research methods of emergency evacuation in the views of many scholars,which can find various problems in the process of evacuation,so as to help people adopt more reasonable evacuation planning and improve the probability of escape.However,the evacuation process in the case of earthquake is complicated and there are many influencing factors,especially there is still a lack of research on evacuation of urban villages,therefore,it is very urgent and necessary to carry out the simulation study of urban villages earthquake evacuation.This paper conducts a detailed investigation on the buildings,earthquake emergency shelters and road traffic in luozhang village,and analyzes the psychological performance,evacuation behavior and specific individual parameters of the people in luozhang village through the earthquake evacuation questionnaire.Considering the effects of earthquake the degree of personnel panic and the degree of personnel familiarity with evacuation environment,an improved social force evacuation model is proposed.At the same time,the search and selection strategy based on differential evolution improves the cuckoo algorithm and optimizes the path planning of evacuees.The improved social force evacuation model is combined with the improved cuckoo algorithm to establish the personnel evacuation model in luozhang village.The probability of earthquake collapse and the evacuation simulation of three masonry structure residential buildings in luozhang village are analyzed,and the probability of safe evacuation,ASET and RSET for each floor of three residential buildings is obtained.Through the simulation and analysis of the earthquake evacuation in luozhang village,it is shown that if there is an earthquake that more than 0.2g in kunming,many buildings in luozhang village will collapse,and the residents in luozhang village suffer a large number of casualties,and the corresponding seismic evacuation countermeasures are put forward.