Study On Construction Risk Management Of West Line Extension Of Changchun Metro Line 2

At present,many domestic city to carry out the construction of rail transit with vigour and vitality,the most important is the underground one(the subway)construction project.In the process of city civilization,people fully enjoy the subway passenger traffic speed,large capacity,low energy consumption,little environmental pollution and many other benefits.At the same time,the progress of the engineering construction process,safety,investment and other indicators of control requirements more and more high,let the subway construction units,construction units and insurance service units facing the work situation is more severe.Due to subway construction in the city below the surface,by the geological hydrology,underground pipelines,underground facilities influence There are too many uncertainties and potential risks to face,so it is very difficult to control the risk of subway construction.Changchun Metro Line 2 West extension line project is an important link Changchun in rail transit,is a key project of subway line west extension,set up a total of 2 stations and 2 sections of all underground lines,and rail transportation and other route planning in the increase of transfer nodes.For the construction of the project,although there are geological exploration,meteorological and hydrological data as a reference,can help to predict the risk,but the subway construction is groping operation gradually in the tens of meters underground location,many risk factors of uncertainty inevitably exists in the construction of civil engineering.Especially bear the stress system operation of metro construction structure,construction process is The first ring,is the most important,the highest cost,the biggest risk part.Whether the risk of construction personnel,construction equipment or risk,environmental risk,each kind of unfavorable factors will have a single or a series of risk of accidents,if improper control may cause accidents,huge losses and even irreparable and bad the social impact.This paper introduces the progress of the subway engineering risk and the related risk management theory,and from the angle of Changchun Metro Line 2 West extension line project construction risk management research.First of all,frompersonnel,machinery,materials,construction methods,construction of environmental risk factors,focus on the Changchun Metro Line 2 the West extension line construction risk identification,summarizes the risk factors of different types and forms.Secondly,still focus on the construction of five elements,targeted a detailed analysis of the various risk factors can lead to accidents and loss of work.Then,through the risk classification,expert evaluation methods on this project The risk assessment,the project risk management is of more practical value.In order to solve the construction risk control problems better,this paper introduces general construction risk control measures,and puts forward the measures of risk control of modern construction,expounds the way of risk control of subway construction.The effect of wind fundamentally,Party Construction the security and profitability of the mind does not want to have the risk of accidents,therefore,carried out in the multi joint participation in the work of risk management will be more active.In this paper,Changchun Metro Line 2 West extension line as the research object,pay attention to production safety,people-oriented concept of social development,for the different types of risk,Risk factors put forward different risk control measures,and the research content can be used as reference for risk management of other construction projects.