Identification And Evaluation Of Hidden Hazard In The Whole Life Of W City Metro Project

Along with the rapid development of subway project in W city,safety accidents occur frequently,and its total amount remains high.How to effectively guarantee the subway project to carry on normally and reduce the probability of safety accident becomes an urgent problem to be solved.There may be hidden hazard in the whole life of subway projects,and the development of hidden dangers will lead to safety accidents.From the point of view of the whole life cycle,this paper identifies the hidden dangers of subway project in W city,quantifies and evaluates the hidden hazard,and the specific research contents are as follows:First propose the identification method of hidden hazard in the whole life of W city subway.Combined with the existing research and analysis,use work breakdown structure and hidden danger point decomposition identificating hidden hazard.According to this decomposition principle,discriminate hidden danger in W city,which provides the basis for the evaluation of safety hidden danger.Construct W city subway project hidden hazard evaluation model.Then analyzing the basic principle of mutation theory and the basic steps of mutation series method.Put forward the establishment of safety hidden danger evaluation index system combined with factor analysis method,and construct the safety hidden hazard evaluation model.Finally evaluate the hidden dangers in W city.Based on factor analysis,the index system of hidden danger in the whole life of W city subway project is constructed,then calculat and analyzed the evaluation value of each layer.Judge the key points in safety accident prevention and control of W city subway project.