Study On The Risk Management Of Urban Utility Tunnel Project In China Based On Structure Equation Modeling

Urbanization process of China has experienced significant growth since the implementation of reform and opening up policies.At present,the development of urbanization in China has entered to the next stage,and the term "enhancing quality and efficiency" has emerged as a pivotal role.Therefore,the focus of the new urbanization construction has changed to focus on public services,land use and spatial distribution.By building all kinds of municipal pipelines and managing them in a centralized way,the urban utility tunnel not only meets the increasing demand of urban residents for resources of production and living,but also effectively solves the issue of enhancing the pipeline capacity and upgrading the pipelines of the urban utility tunnel project,and improves the land use efficiency and the space carrying capacity of the city.Because of its concealment,comprehensiveness,long-term and the intricacy of both building and running the system,there are many risk factors involved in each stage of utility tunnel.In order to accurately identify the risk factors of urban utility tunnel,the thesis reviews the researches of risk management and chain-risk of utility tunnel projects at home and abroad.The concept and characteristics of urban utility tunnel project are defined,and the meaning of risk and risk chain is defined.Secondly,after identifying the initial risk factors of the urban utility tunnel project in China by literature review and case study,the key risk factors are screened by expert evaluation method.Based on the connotation and characteristics of urban utility tunnel project and the risk transmission theory,the screened key risk factors are classified into three risk categories according to risk source,risk event and risk consequence.Then,three risk categories are explained in depth,in order to establish the risk transmission theory of utility tunnel better.Furthermore,it is the core content of this dissertation to construct the Structural Equation Model of the risk transmission path of the utility tunnel in our country.By collecting the related data with the questionnaire,the model is verified by the Amos software,and the result analysis model is improved to get the result of the risk transfer path of the urban utility tunnel project in China.Taking the risk management of utility tunnel in China as the main idea,the weight coefficients of different risk factors and the comprehensive path coefficients of different chain risks are calculated.This thesis analyzes the risk transmission path of the urban utility tunnel in China to ensure the correct decision-making,smooth implementation and efficient operation of the utility tunnel project.Among them,market environmental risks and technological quality risks have a critical impact on project operation risks,leading to the consequences of the benefits and risks of urban utility tunnel projects in China.In the risk source,the most important risk factors are the risk of law revision,force majeure,immature market,technical index risk and financial risk.The most important risk factors in risk events are unreasonable project functional positioning,engineering changes,aging of utility tunnel structure and equipment,as well as high maintenance and update costs.The most important risk factor of risk consequences is economic benefit risk.Finally,based on the perspective of cutting off the risk transmission process,from the risk source to the risk event and from the risk event to the risk consequence,the dissertation puts forward risk countermeasures and suggestions to prevent the risk consequence of the utility tunnel project whose economic,social and environmental benefits cannot reach the expected goal.The construction of a risk transfer model for the utility tunnel project in China provides a new perspective for risk prevention in the utility tunnel project,and provides a more objective and practical dynamic management approach for risk management during project decision-making,implementation,and operation,which helps to improve the quality and efficiency of urbanization development in China.