System of Theories and Methods Monitoring Metro Tunnel Structure Safety during Operation Period

To fuse the data-acquisition, data treatment and analysis methods, the diagnosis and evaluation processing in every filed into a whole body including the abstraction of structure health information, synthesized data treatment and analysis, structure diagnosis and safety evaluation, a system of theories and methods monitoring metro tunnel structure safety during operation period is put forward in this paper. This system fuses the theories and methods in the fields including information, material, engineering and management and so on. It fundamentally ensures the operation safety and the disaster resistant ability of metro tunnel structure, and also is the main development direction of safety monitoring of metro tunnel structure. Based on the research on the system characteristics of metro tunnel structure, this paper transforms the positive-thinking pattern into converse, systemic and feedback mode and studies the system gropingly. The application and development of the system structure based on information fusion, analysis fusion, diagnosis fusion, and evaluation fusion is introduced and discussed for the field of safety monitoring of metro tunnel structure.