| In recent years,the implementation of the urbanization and the"The Belt and Road" strategy increased the government departments to provide public goods burden.In this context,public-private partnerships(PPP)will also occupy an increasing proportion in China’s infrastructure construction.A cooperative social capital cooperation is the government and individuals,is the cooperation between the government and the people to the construction of basic facilities or provide public goods,with individual operating rights in a government licensed under the condition of the government and individuals through a contract to form the rights and obligations of the two party.Li Yang stream system comprehensive renovation project is a typical PPP project,and it is also the first PPP project of water conservancy project in Zhejiang province.It has been listed as a priority project by the government.The implementation of comprehensive harnessing project of Li Yang River system will have great economic and social significance to Zhejiang province.Therefore,the risk of the project has become a common concern of all project participants.The construction period of PPP project is 3 years,but the service period is tentatively scheduled for 15 years(including 3 years of construction period).Because of the longer period and more uncertainties,there are more risks in the process of construction,and many risks can not be avoided.In order to reduce the risk of future losses,based on the comprehensive renovation of Liyang River PPP project as the research object,from the angle of risk management,on the basis of previous studies,using both qualitative and quantitative methods for the study of the PPP model.This paper introduces the related concepts of PPP model,risk management,and then use the Delphy method implementation of the comprehensive renovation of Liyang stream system before PPP project risk identification and evaluation,and then determine the risk allocation scheme and measures to reduce the impact of the risk on the project.During the implementation of the project,risk tracking and prevention are carried out with the analytic hierarchy process(AHP)in order to ensure the smooth progress of the project.The Analysis results show that:Results:through the analysis of Delphy method and AHP using risk of Liyang stream system project PPP comprehensive renovation project analysis and evaluation of the project financial risk relative importance degree is the largest,the second is the risk technical risk and construction,and finally political risk,operational risk and natural risk.Combined with the actual situation of the project put forward from three aspects to deal with these risks:the government level,to strengthen the government’s cooperation consciousness and the spirit of contract,management and service capabilities,improve relevant laws and regulations and strengthen the supervision of the project,set up the PPP fund in whatever circumstances,to provide financial support for the project.In terms of the cooperation between the private investors,according to the actual situation of the project reasonable profit,pay attention to the coordination of all work in project construction,and reduce the risk of financing by means of reasonable and correct,such as the formation of the fund,asset securitization and other measures.The item company level,construct perfect risk prevention system,improve the leadership mechanism,strengthen corporate governance,the process of the construction of the project,the coordinating role of the item company is very important,so the item company to improve the mechanism and the establishment of risk prevention experts,to provide support for the smooth construction project.The research results will promote the application of PPP model in PPP project construction comprehensive renovation of Liyang stream system and reduce the influence of the risk of the project,has an important guiding significance for the construction of water conservancy infrastructure in China’s future. |