Study On Safety Risk And Control Of Construction On Subway Station

In view of the p resent situation that we lack a perfect and practical city subway risk assessment and prevention m easures of our country, this passage through the anal ysis of the current subway station construction safety risk assessment existed researches and construction methods, which introduced the construc tion features and control points of each construction method. And this passage used the finite element software ANSYS to establish a station of the Metro load- structure interaction model. After analyzing the various factors that might effect on the construction safety, this passage targeted assessment elements and control elements of the safety risk on subway station construction,and simulate and analyzes the loading condition of Shijiazhuang metro line three Bailin Zhuang station.This passage introduced the m ethods of risk assessm ent, and focuses on the introduce and analysis on analytic hierarchy process, and then determine the level of security classification and acceptance criteria, which established an d improved the risk assessment model and risk assessment system of the construction process of subway station using the analytic hierarchy process.This passage use ANSYS program to simulate Bailin Zhuang station by force diagram, and apply the relevant provision s on safety factor of "T unnel Design Specification"(TB10003-2005), and calculate the safety factor of the whole structure, which finally figure out the st ructure of safety coef ficient table, and can conform to necessary code and security requirem ents. So we can deal with the safety facto r by the lower part of the effective reinforcement or to avoid stress concentration, or by the higher part reduce the materials or avoid the local design even safe.Then I sum marize the controlling factors and counter m e assures prevent and control of risks in construction of subway station, and make some risk assessment for future prospects.