Safety Risk Analysis And Safety Evaluation Model Construction Of Urban Utility Tunnel

With the rapid development of our economy and society.The pressure of water supply,heat,electricity and other municipal pipelines is increasing.As a highly intensive municipal infrastructure,a urban utility tunnel can effectively reduce urban pressure,save resources,and solve social problems such as zipper highways and environmental damage.However,the problems of integrated pipeline corridors that integrate various pipelines are also very prominent,with huge investment,complicated maintenance management,insufficient construction and management experience,and outstanding safety risks.As a large municipal infrastructure,problems can have unbearable consequences.Therefore,the safety problem of the urban utility tunnel cannot be ignored.The purpose of this article is to explore the risk factors that affect the safety status of integrated pipe corridors and establish a safety evaluation model for integrated pipe corridors.The specific contents are as follows:Through the analysis of the development and research status of integrated pipe corridors at home and abroad,we understand the gap between our country and other advanced countries in integrated pipe corridors,as well as the development status and operating models of domestic integrated pipe corridors,as well as the safety issues of pipe corridors.Research Status.After reading relevant literature and legal provisions,I learned the basic composition,management methods,and accidents of the corridor,and summarized the risk factors affecting the safety of the comprehensive corridor.We hypothesized the structural relationship between the aggregated security risk factors,designed a questionnaire,obtained data through the questionnaire,and analyzed and verified the hypothetical security risk relationship using the PLS-SEM method to further clarify the structural relationship between the factors.Through the summary of safety risk factors,the safety evaluation index system of urban utility tunnel is established,including 5 first level indexes,12 second level indexes and 32 third level indexes.Design the questionnaire,use the questionnaire data to calculate the weight ratio of all levels of indicators through the network analytic hierarchy process,complete the construction of the comprehensive tunnel safety evaluation model,and verify with examples.