Establishment of Integrated Safety Management Network System for Geotechnical Structures

초록

Structural health monitoring (SHM) is rapidly developing technology area due to increasing demands from industry. The industry demands structures more safety, with better performance and lower life cycle costs in the operation. SHM is defined as the use of in-situ, non-destructive sensing and analysis of structural characteristics in order to identify if damage has occurred, define its location and estimate its severity, evaluate its consequences on the residual life of the structure. SHM objectives are consistent with this practice but it takes advantage of the new technologies in sensing, instrumentation, communication and modeling in order to integrate them into an intelligent system. This paper studied the safety management network system of infrastructure which constructed smart sensors, closed-circuit television (CCTV) and monitoring system. This safety management of infrastructure applied to cut-slope and tunnel, levee, subway and utility tunnel, etc. The system applied to technologies of standardization guidelines, data acquirement technologies, data analysis and judgment technologies, system integration setup technology, and IT technologies. It was constructed safety management network system of various infrastructures to improve efficient management and operation for many infrastructures. Integrated safety management network system of infrastructure consisted of the real-time structural health monitoring system of each infrastructure, integrated control center, measured data transmission using internet web-based, collecting data using server, early alarm system which the dangerous event of infrastructure occurred. It was applied common architecture in order to effective handling that acquisition, storage and analysis of a large amount static/dynamic sensor data and event processing in the integrated organization system for infrastructures. This system is composed of access processing which provide common function connect with other system based on the middle-ware framework, protocol processing and data/event processing. Early alarm system proposed realization of warning and response within 5 minute or less through development of sensor-based progress report and propagation automation system using the media such as MMS, VMS, EMS, FMS, SMS and web services of report and propagation.