Study On Construction Safety Evaluation Of Urban Rail Transit Station

With the continuous development of urbanization,urban underground space has been largely developed and utilized.Urban rail transit project has become an important measure to relieve the pressure of surface traffic and improve urban traffic conditions.Urban rail transit construction,especially the station construction project,is affected by many factors.In the construction process,there are many problems,such as narrow site,complex surrounding environment,and overlapping technological processes.Therefore,in order to ensure the safety construction of urban rail transit station,it is necessary to strengthen the safety management and control of construction,and conduct safety evaluation of the construction process of urban rail transit,which is of great significance to ensure the smooth implementation and safe operation of the project.According to the similar project construction experience at home and abroad and the more commonly used construction technology,from the construction safety influence factor identification and evaluation of construction safety analysis two aspects to explore the methods of construction safety management of urban rail transit station on the project safety management step by step implementation of dynamic management,mainly related to security impact factor identification,analysis,evaluation and control process.Expounds the construction safety influence factor to identify commonly used methods and their characteristics,mechanism,studies the construction safety accident and casualty statistics analysis and the actual situation of urban rail transit station,around the"man-machine-environment-management"four aspects to identify the impact of urban rail transit construction safety factor,and on this basis to determine the construction of urban rail transit station security evaluation index set,using the analytic hierarchy process(AHP)to construct the construction safety evaluation index system of urban rail transit station.The weights of each index are determined,and a construction safety evaluation model based on AHP-fuzzy synthesis method is established.Finally,taking station A project as an example,the safety evaluation of the transportation and construction safety of the urban rail transit station is carried out by using MATLAB language and the built model,verifying the effectiveness and practicability of the constructed index system and safety evaluation model of the station construction safety.According to the evaluation results and the actual situation of urban rail transit station construction,specific improvement measures are proposed for the existing safety risks,so as to ensure the construction safety of urban rail transit station and reduce the occurrence of safety accidents in the construction process.