Design And Application Of Emergency Evacuation Planning For Logistics Storage

In the process of evacuation,there are often blocked,stamped and other events,causing casualties to pedestrians,and will cause the decrease of evacuation efficiency.The main reason of these phenomena is the improper evacuation of pedestrians.Therefore,based on the social force model,this paper puts forward improved techniques to restrain pedestrian behavior,and improve the efficiency of evacuation.This paper has completed the following aspects:1.An improved social force model is proposed.According to the analysis of social force in storage environment,the attractiveness coupled social force model is proposed to describe pedestrian movement.The simulation results show that the model can describe the pedestrian behavior more realistically and solve the problem of the poor robustness of the original model in the warehouse.2.Three kinds of evacuation strategies are put forward.Through the existing fire case and behavior analysis in the evacuation,found that the disorder and density will reduce the evacuation efficiency.Therefore,aiming at these factors,we design speed stratification,buffer setting and shape improvement to restrict pedestrian behavior and improve evacuation efficiency.3.Analyze the fire combustion simulation of the sample warehouse,which determines the required time of the safe evacuation.4.The evacuation strategy is applied to the reality by simulation.The simulation has two parts.The first part is the evacuation strategies applied in the sample warehouse.We analyze the optimal layoff design and the exit shape design.The second part includes two experiments,experiment 1 and 2 is the simulation of evacuation in sample which used and not used the strategy.The results show the behavior changes and the effect of evacuation.The results show that the pedestrian behavior has a great influence on the evacuation efficiency,reasonable strategy can effectively reduce the loss.