Research On The Subway Station Construction Risk Assessment

With the rapid development of the urbanization process and the surge of traffic, the private vehicles have been not enough to meet people’s travelling demand, it has become more and more important to development the urban rail transit in the urban transportation planning now. Although the achievements of the modern urban rail construction is prominent, the own characteristics of the subway engineering decide that it is prone to the risk of accidents in the process of the subway construction. In order to try to do the prevention work early, to the greatest degree of avoid risk, to reduce loss, and to weaken the accidents may cause the bad effects, we must take some risk assessment studies on the complex subway construction process, to promote the urban subway operation safety, and to really make the subway that a convenient transportation play its advantage function.The paper combines the construction projects practice of station S, line X of Beijing subway, uses the analytic hierarchy process, the fuzzy evaluation method, etc., and on the basis of a detailed study of the relevant theory of the subway station construction risk, makes further research on the construction risk of the station S, line X of Beijing subway, focusing on the following two aspects:First, establish the evaluation index system of the subway station construction risk assessment. Then introduce the deviation matrix to improve the analytic hierarchy process, and through the improved analytic hierarchy process to confirm the indexes weight. Second, the risk evaluation is made on the station S, line X of Beijing subway through the application of the fuzzy evaluation method. Then, analyze the results of the risk evaluation, and make a contrast verify between the conclusions and the actual engineering. Through the process of risk assessment, the paper finally makes the risk level of the index clear, which is beneficial to take further the corresponding risk control strategies and measures, and which has a guiding significance.