| Compared with the increasing scale of municipal infrastructure construction across the country,urban pipeline construction management has shown a shortcoming situation.In recent reports,various accidents such as pipeline leakage,heavy rain,water logging,and road collapse caused by the ineffective construction of urban pipelines It is not uncommon,and even caused serious casualties with great impact.It can be seen that China is still relatively lagging in the scale of urban pipeline construction and management efficiency at this stage.Now it has become a focus that the country,society,enterprises and individuals must attach great importance to.Problem,and the construction of integrated pipe gallery is the main method to effectively improve and enhance the efficiency of urban underground pipeline construction management in China at this stage.The integrated pipe gallery is an intensive municipal infrastructure built underground to integrate various urban pipelines.Compared with traditional pipelines,the integrated pipe gallery has extremely excellent performance in terms of load capacity and management efficiency.Effectively avoiding repeated excavation of urban roads,extending the service life of pipelines,improving pipeline utilization efficiency and strengthening urban disaster prevention capabilities have many advantages that traditional pipelines cannot match.Therefore,the construction of integrated pipeline corridors can better promote economic growth and supply-side reforms,thereby achieving an overall improvement in the quality of urbanization development.However,the complex and specific attributes of the integrated pipeline gallery PPP project itself have caused more risk sources and risk categories,which further aggravated the difficulty of risk management and control of the integrated pipeline gallery PPP project.Therefore,the risk management of the integrated pipeline gallery PPP project Making great improvements,optimization’s and upgrades,so as to effectively avoid losses and potential safety hazards that may be caused by insufficient practical experience,has become the core problem that my country’s construction industry needs to solve at this stage.Focusing on the basic concepts and theoretical basis of utility tunnel,PPP mode and risk management,this paper reviews a large number of relevant research results of domestic and foreign scholars on the risk management of utility tunnel PPP project,and selects Kunming Chunyu road utility tunnel PPP project as the specific research object Double standard evaluation filtering method and OWA grey fuzzy comprehensive evaluation method are used to identify the risks and risk factors that the PPP project of Chunyu road utility tunnel may face based on the risk sources(risks)and risk categories(risk factors)respectively,and the hierarchical holographic modeling method(HHM)and expert scoring method are used to identify all the identified risks After the preliminary screening of risk and risk factors,the interpretive structure model(ISM)is applied to comprehensively analyze all kinds of risks and risk factors,and the hierarchy is divided,the OWA grey fuzzy comprehensive risk evaluation model is constructed based on the grey fuzzy theory,and the comprehensive risk evaluation of Chunyu road utility tunnel PPP project is carried out,and the grey fuzzy comprehensive risk evaluation is fully confirmed by comparing the evaluation results The scientific validity and reasonable applicability of the model.According to the risk assessment results,combined with the actual situation of Chunyu road utility tunnel PPP project,the paper puts forward effective control measures for various key risk factors,so as to provide strong support for the decision-making and specific implementation of each participant of Chunyu road utility tunnel PPP project,so as to effectively improve the risk management efficiency of Chunyu road utility tunnel PPP project. |
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