Research On The Health Status Evaluation Method Of Highway Tunnel Based On The Refined Simplified Neutrosophic Indeterminate Set

Since the 21 st century,the scale of highway tunnel construction in China has been expanding,and the overall number has shown an increasing trend.Under this trend,the structural disease problems in highway tunnels are becoming increasingly revealed.Lining diseases directly affect the tunnel performance,even endanger the safety of driving and pedestrians,causing serious economic losses and social impact.Therefore,in order to achieve accurate evaluation of the health status of highway tunnels,this paper conducts a comprehensive and in-depth study of the health state evaluation system of the highway tunnel,introduces the refined simplified neutrosophic indeterminate set to innovate the evaluation method,and establishes a new comprehensive evaluation model of tunnel health status,which is of great significance to the development of tunnel health status diagnosis methods and systems in the future.The main research contents and results are as follows:(1)The study uses the analytic hierarchy process(AHP)method to determine the disease diagnosis and evaluation indicators and establish a complete highway tunnel disease grade evaluation index system,taking the structural lining damage of highway tunnels as the research object.After comparing the existing international classification standards for tunnel health status,a four-level classification method is determined to be used for grade detection,and a more scientific and reasonable classification standard for highway tunnel health status is constructed.Combined with the judgment basis of domestic and foreign indicators,the qualitative and quantitative analysis method is introduced to fully study the selection of diagnostic indicators and sub-indicators,as well as the judgment criteria.The judgment criteria of six evaluation indicators are determined respectively,including lining cracks,water leakage,lining material deterioration,cavity behind lining,lining deformation,movement and settlement,lining delamination and peeling.(2)Through in-depth research on the theory of neutrosophy,it was discovered that the refined simplified neutrosophic indeterminate set application prospects were set in the evaluation of the health state evaluation of highway tunnels.The concept of the refined simplified neutrosophic indeterminate set is introduced in detail to demonstrate its flexibility and superiority in solving multicriteria decision-making problems.The introduction of the characteristics of neutrosophic number lays a good foundation for the evaluation standards of diagnostic indicators and the refined processing of the actual data of the tunnel section.By using the method of arccosine similarity measures,a multicriteria decision-making matrix model of the refined simplified neutrosophic indeterminate set under different risk ranges is established.(3)Study the characteristics of the weight in the highway tunnel health status evaluation system,introduce the Multiplication scale method and artificial neural network law,and determine the evaluation index weight of the index layer and the guideline layer respectively.Analyzing the operability of combining the refined simplified neutrosophic indeterminate set with the highway tunnel health status evaluation,and discussed the specific implementation steps of each link in detail,and successfully established a comprehensive evaluation model of highway tunnel health status based on the refined simplified neutrosophic indeterminate set.(4)Further apply the comprehensive evaluation model of the highway tunnel under the refined simplified neutrosophic indeterminate set to the actual engineering analysis.Select the Shanwangmiao Tunnel and the Qidaoliang Tunnel for health status evaluation and analysis.Through comprehensive comparison and analysis between the evaluation results and traditional evaluation models,it was concluded that the new comprehensive evaluation model results are accurate and reasonable,with good feasibility and scientificity.The new method optimizes and upgrades the evaluation process,breaks the limitations of the traditional evaluation model,and reduces the impact of single factors.It is a good demonstration that the comprehensive evaluation model of highway tunnel health status based on the refined simplified neutrosophic indeterminate set is closer to the real record situation,more rigorous,and has a potential application prospect.