Research On The Construction Method For The Risk Warming System Of Railway Engineering Contract Construction Project

With the rapid development of national economy and increasingly enhancement of economic strength, railway undertaking got rapid development. However, in the current railway construction, contracting enterprises are usually lack of risk consciousness, and with low level of risk management. Therefore, it's quite important for contracting enterprises to build the railway engineering project risk warning system to take advanced or pre-management measures to adopt corrective scheme and send out warning signal to reduce the loss to a minimum once monitoring the risk signs in the railway project implementation process.Firstly, this thesis analyzed and summarized the characters of railway engineering contracting project and its risk, and conducted relative deep discriminate analysis of railway engineering contracting project risk factors. This was the premise of risk warning. It used risk breakdown structure to stratify and classify the railway engineering contract construction project risk factors as hierarchical relation.Then, it constructed the theoretical system of railway engineering contract construction project risk warning system and introduced the conception, characters, functions, framework system and operation mechanism of the risk warning system. The framework system included risk waning information subsystem, risk identification subsystem, risk evaluation subsystem, risk warning discrimination subsystem and risk warning countermeasure subsystem. Though constructing railway engineering contacting project risk waning index system and using fuzzy comprehensive evaluation method based on AHP to build the risk warning model of the system to evaluate the risk conditions of the project and give different warning signals according to different evaluation results.Finally, to prove the practicality and rationality of the risk warning system founded, it applied the model to the Xiangshan tunnel of Longyan-Xiamen railway engineering to conduct comprehensive evaluation. Then it analyzed the prevention and control strategies usually used in railway engineering contacting risk, and proposed coping preparedness of various levels of project risk, with countermeasures of main risk factors and dynamic risk control measurements.