A comprehensive evaluation method for concrete dam health state combined with gray-analytic hierarchy-optimization theory

Concrete dam health state has been taken seriously in the field of structural health monitoring. A limitation in the current research is a lack of clear physical significance and reasonable interval division for better reflecting the development trend of the health state. This article introduces a comprehensive evaluation method that provides information on the fusion of different monitoring types and influences of degree weight. The analysis method of variation tendency for concrete dam soundness is proposed based on gray theory. According to the principle of analytic hierarchy process, this article introduces an optimization division method of evaluation grade interval for concrete dam health state. Based on this, a method based on multiple monitoring quantities is established through studies of determination methods for monitoring various quantities of weight, which aimed at evaluating concrete dam health state and solving the problem of comprehensive evaluation for concrete dam health in an effective manner. An existing concrete dam is presented and discussed to serve as the validation of the established theory.

Automated summary

This article focuses on the comprehensive evaluation of the concrete dam health status, introducing an analysis method based on the fusion of different monitoring types and degree weight influence. By proposing an optimization division method using gray theory and analytic hierarchy process, a method based on multiple monitoring quantities is established to effectively evaluate the concrete dam health state. The validation of the established theory is demonstrated through a discussion of an existing concrete dam.