The Research Of The Shen Yang Zhuang Gai Highway Dai Yu Ling 2 Tunnel Construction Phase Risk Assessment

Highway construction project is a key component of the infrastructure construction project, it needs relatively high construction security requirements. However, the Highway Tunnel Project as an important part of the Highway construction project, the Highway Tunnel safety risk management is more important, due to its construction difficult, technically demanding, long construction period, the larger investment, widely involving factors and other characteristics, so the full of a lot of risk factors and uncertainty may be occurred in the whole Highway Tunnel construction process, the security risk accident will be appeared in the whole Highway Tunnel project construction process at any time. How to do the Highway Tunnel construction phase risk assessment and make more effective risk management to ultimately improve the safety Highway Tunnel. This is a worthy urgent problems.In this paper, the Highway Tunnel project construction process risk management problems and the risk assessment of the Highway Tunnel theory study and practice are relatively weak, under the circumstances, starting the theory research and application of the Highway Tunnel construction phase risk assessment. This paper introduces the domestic and international Highway Tunnel risk assessment research status, then explained the necessity of the Tunnel risk management, with the actual geological surveying and expert surveying doing the collection of the Tunnel project construction risk factors, and then using the risk checklist method and expert investigation to make the Highway Tunnel project risk identify research, identifying all the Tunnel project related risk factors. After project manager's screening, establishing the risk assessment index system of the Tunnel project, finally by using the Fault tree risk analysis to do the Highway tunnel risk assessment study, making the response methods and controlling measures to prevent Highway Tunnels and risk, and ultimately achieve the goal that A real-time monitoring risk and dynamic risk management, that is, making risk planning, identification, estimation, assessment, response and monitoring in every Tunnel construction stage. This article taking The Shenyang Zhuanghe to Gaizhou Highway Ninth Section's Dai Yu Ling 2 Tunnel for example, through collecting and identifying Dai Yu Ling 2 Tunnels construction phase risk factors and establishing the risk assessment index system to do risk assessment research. The research has analyzed that the response methods and controlling measures of the Tunnel construction risk, and using monitoring and measuring and the address radar to keep track of the tunnel from time to time, taking timely measures to the emerging risks. Finally, the practice shows that the controlling measures and response methods are scientific and effective.