Research On Construction Risk Management Of Urban Expressway Tunnels

The city expressway is an important mode of transportation for the development of modern cities towards the surrounding area.It is also one of the important parts of the process of urban and rural integration.The concept of urban expressway was originally designed to solve the traffic pressure caused by the increase in the number of cars in the city.In the modern sense,the urban expressway refers to a fast track from the city to the surrounding counties and towns,and generally does not allow large freight traffic The However,in the construction process will inevitably encounter the implementation of the tunnel project,which will make the road construction time is long,technical requirements than in the city to build a fast road higher,so that the requirements of the construction unit will be more stringent.The starting point of this paper is to overcome the construction of the various complex and dangerous risks,but also make the enterprise can get economic benefits.As far as possible in the construction process may occur in a variety of security risks,to help the construction unit to reduce losses,from the side can also improve the reputation of the construction unit,and then create more economic benefits.Starting from the research background and significance,the paper reviews the relevant literatures on risk management and tunnel engineering and urban expressway at home and abroad,analyzes and summarizes the existing research results,and provides reference for the follow-up research.Secondly,the relevant theories are introduced.The index system is constructed and the index system is constructed,and the connotation of each index is defined.At the same time,in order to avoid the error of the evaluation system caused by different measurement units,the linear dimensionless method is used to standardize the risk index of urban expressway tunnel.Finally,the XX tunnel project is selected and simulated by the evaluation model established in this paper.Method of feasibility.Based on the theory of risk management of urban expressway tunnel project and the theory of urban expressway tunnel project,this paper applies the theory of risk management to expressway tunnel project,and analyzes the material utilization rate of urban expressway tunnel project,The quality of personnel,the use of machinery and equipment,construction technology and environmental impact of five aspects of the assessment of risk factors,and these five indicators of refinement,select sub-indicators,the establishment of index system for urban expressway tunnel project risk assessment basis.