| The construction and operation of urban rail transit has promoted the development of national economy,reduced transportation costs,eased urban traffic pressure,brought convenience to people's travel,which becomes an important part of urban traffic at present.During the rapid development of urban rail transit,how to ensure the safety of passengers has increasingly attracted the attention of the society.How to organize passenger evacuation safely and effectively in emergencies has become a problem that needs to be solved and discussed.As a new technology,BIM has established a 3D model that integrates project materialization and functionality into one,through the collection,storage,management,exchange and updating of information.The communication and sharing between diverse parties and various application software through different stages of the project can provide the possibility for the whole life cycle of Metro project to do better in fire prevention,which can effectively formulate evacuation design plan,and improve the capablity of metro risk prevention.This paper firstly focuses on the analysis of subway station fire hazard and personnel evacuation theory,introduces BIM technology and its characteristics,that provides the possibility and technical support for the application of BIM technology to the evacuation simulation of Subway fire personnel.It takes an actual subway station as an example in the following,using Revit software as a BIM tool to make a model,combining the BIM model and fire simulation software,determining the subway fire simulation parameters to analyze the fire process under different working conditions.Finally,the Pathfinder software is used to evacuate the personnel.By making a judgement of the evacuation results between the two fire situations respectively,I put forward some feasible measures to strengthen the fire safety of metro stations and speed up the safe evacuation of personnel.The paper has 26 figures,13 tables and 66 references. |
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