Comprehensive Analysis Theory And Method Of Health Diagnosis Of Large Hydraulic Engineering Concrete Structure

Because the health of large hydraulic engineering concrete structure is an important thing that is related with engineering's safety, it has important theoretical meaning and practical value to research the method of diagnosing the healthy condition of the large hydraulic engineering concrete structure. Concrete dam is regard as main researching object in this dissertation. The knowledge, such as analytic hierarchy process, attribute recognition, together with the knowledge of dam engineering, are introduced into the dissertation, which performs relatively detailed study on method of health diagnosis, comprehensive diagnosis structure system, method of measuring diagnostic index and method of comprehensive diagnosis of the large hydraulic engineering concrete structure. The main contents are as follows.1. Methods of the health diagnosis of the large hydraulic engineering concrete structure are studied and analyzed. Discuss of mathematical monitoring models are given in detail, and better health diagnosis models are founded.2. Six rules of studying out the diagnostic index of comprehensive health diagnosis structure system of the large hydraulic engineering concrete structure are given. The method of founding the comprehensive health diagnosis structure system of the large hydraulic engineering concrete structure is discussed, and the design of healthy appraising aggregation of the system is lucubrated. The fourth-class divisional method of healthy grade is ascertained.3. The conception of healthy value is founded, which can make the appraisements of different indexes having uniform signification. The methods of standardizing original data for quantitative and qualitative diagnosis index are studied. By using these methods, the comparing difficulties between different diagnosis indexes at the same layer brought by the difference in expressive method, the scale of value, measuring method and units of diagnosis indexes of the comprehensive health diagnosis structure system of the large hydraulic engineering concrete structure is solved.4. Based on analyzing and comparing the existing methods of determining weight, multiplication scale method is used to the health diagnosis of the large hydraulic engineering concrete structure. And the method of calculating syncretic weight of diagnosis index is founded by using optimization guideline.5. According the characteristic of multi-level recursive analysis of comprehensive health diagnosis of the large hydraulic engineering concrete structure, model of comprehensive health diagnosis of the large hydraulic engineering concrete structure is founded by using attribute recognition theory.