The Establishment Of Security Risk Pre-Warning Index System And Evaluation Model Of Large-Scale Engineering Project

Since major accidents of security risk for large-scale engineering projects occur more and more frequently, it has become a prominent problem that needs to be solved in the national disaster prevention and reduction process to establish a pre-warning evaluation index system and do the control research.In this paper, through the study of large project risk cause mechanism, risk identification, assessment, control method, building large engineering safety risk index system and early-warning model is of great significance to realize the project smoothly, the main content of the study are as follows:According to the internal and external risk factors of the project, safety risk index system is established.Screening index as input variables of Artificial Neural Network model and training the neural network using sample, when the error between the expected value and the actual output value is in the scope of the error permit, the network model can be used as an evaluation model of the application to achieve the effect of adaptive learning,This project plans to establish the risk pre-warning evaluation index system for large-scale engineering projects with the help of the method of characteristic variables, and focus on the further systematical research about security risk self-governing pre-warning control model of large-scale engineering projects. It is definitely of important theoretical value and practical significance.