Security Risk And Countermeasures Studies Of Nanchang Metro Construction

China's subway engineering maintains great development after its beginning in1965, especially in the recent decade. But except for the progress, many accidents took place during the subway construction. For example, the accidents happened in our country in 2009 amounts to 44.Nanchang locates in the Middle Yangtze river and Poyang lake plain's soft soil area, its soil has a complex formation; There are also thicker sand layers, and possibilities of earthquake liquefaction, piping and quicksand, which increases the difficulty of the technical guarantee and security guarantee. At present, there are two subway stations under construction in Nanchang, they are Zhujiang road station and Binjiang avenue station. So, how to guarantee the safety of the subway construction in nanchang city became one of Nanchang government departments and social public's concerned questions.This thesis gathers 179 cases of metro construction safety in the asia-pacific region in recent years, and tries to get the general rule of the engineering safety accident in metro construction.It takes Binjiang avenue station of Nanchang metro line 1 as an example. According to the risk identification theory, it recognizes and evaluates the risk factors of Binjiang avenue station's construction site by using LEC evaluation model, combined with the specific situation of Binjiang avenue station and the analysis of safety accident statistics in the construction of metro station. And then, it makes out the major potential hazard installation in Binjiang avenue station's construction, lays the foundation for security guarantee.This thesis Establishes a management system of security guarantee in metro construction, such as safety vision identity system, double monitoring system, information management system, the security warning system, and engineering insurance. It also, according to the specific situation of Binjiang avenue station, puts forward the difficulties and importances of metro engineering and the corresponding technical measures and management measures for safety.