The Risk Identification An’d Analysis Of Construction Safety For A Project Of Shenzhen Metro

With the continuous progress of human society and the rapid development of science and technology,the scale of subway construction is also enlarging,in which the construction risk identification and analysis have been widely used.Due to the risk of shield posture and foundation pit in subway construction is bigger,the stress system changing and the subway structure security risks existing in the construction process at the same time,to strengthen the construction risk identification and analysis is necessary in the process of subway construction.Based on the project of Shenzhen metro A-project。This thesis takes Shenzhen metro A-project as the research object,studies the construction risk of the project and evaluates the construction risk,and establishes the analytic hierarchy process model by using the theory of analytic hierarchy process and the theory of fuzzy mathematics.In view of the construction safety risk of Shenzhen metro A-project,this paper analyzes the present situation and risk management theory of Shenzhen metro A-project,and analyzes the risk and risk classification of Shenzhen metro A-project construction by combining the shield construction management process.The paper points out the risk identification method of Shenzhen metro A-project,the result of construction safety risk identification and the result of risk evaluation grade.In this paper,the risks of metro A project are evaluated by fuzzy mathematics method.Through the analysis of this article,the conclusions are mainly three points: First,the construction safety risk factors of Project A mainly include special Geological factors,surrounding environmental factors,hydrogeological factors,and errors in field survey data;Second,the main sources of risk are foundation pit construction risk source and structural engineering risk source;Third,the probability of equipment risk in this project is the highest,so it is necessary to propose targeted measures to prevent it,so as to reduce the overall risk of the project.This research is a useful practice of risk management theory and has contributed some experience and inspiration to similar construction safety risk management of subway projects.