Tunnel main body structure health state evaluation and maintenance strategy determination method

Abstract

The invention relates to a tunnel main body structure health state evaluation and maintenance strategy determination method, which comprises the steps of determining basic units, section division ranges and single index grading standards of a tunnel main body structure according to a tunnel main body structure form and tunnel geological data; collecting monitoring and disease data, and determininga single-point health state evaluation result of the tunnel main body structure in combination with a single index grading standard; based on the single-point health state evaluation result, sequentially determining a basic unit, a section and an overall health state evaluation result; determining a single disease maintenance and comprehensive maintenance strategy according to the single-point health state evaluation result and the basic unit health state evaluation result; and determining a tunnel operation management strategy according to the section health state evaluation result and the overall health state evaluation result. Compared with the prior art, the method has the advantages that the health state of the basic unit can be reliably evaluated, so that the problems of follow-up decision errors, incomplete maintenance or excessive maintenance caused by inaccurate evaluation are solved.

Description

technical field [0001] The invention relates to the technical field of tunnel operation and maintenance, in particular to a method for evaluating the health state of a tunnel main structure and determining maintenance countermeasures. Background technique [0002] After the tunnel was put into operation, due to various factors such as construction quality defects and changes in the surrounding environment, disease problems became more prominent year by year, affecting the health status and service performance of the tunnel. During the operation of the tunnel, it is extremely important to carry out monitoring and inspection (measurement) in a timely manner and quantitatively evaluate the health status of the tunnel. [0003] At present, for the evaluation of the health status of the main structure of the tunnel, there are mainly the following public technologies and relevant standards and specifications for reference: [0004] "Technical Specifications for Highway Tunnel Mai...

AI Technical Summary

Problems solved by technology

If the existing evaluation methods such as fuzzy synthesis or Bayesian network for section and overall evaluation are directly applied to the evaluation of the health status of the basic unit, the operation method will be cumbersome, inefficient, inconvenient for maintenance technicians to perform and multiple It is difficult to determine the weight of indicators, and it is easy to ignore the impact of the most dangerous diseases

[0032] 2) The overall state evaluation results reflect the state of the entire line, including different forms of main structures and other civil structures such as openings, pavements, ceilings, and embedded parts. The maintenance countermeasures are determined based on the overall state evaluation results. On the one hand, it is easy to cause If the scope of maintenance is too large, on the other hand, it will lead to errors in maintenance decisions for individual items

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