Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2000.11b
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- Pages.60-76
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- 2000
Real-Time Monitoring and Warning System for Slope Movements Using FBG Sensor.
광섬유격자 센서를 활용한 사면거동 실시간 안전 진단 시스템
Abstract
Early detection in real-time response of slope movements ensures tremendous saving of lives and repair costs from catastrophic disaster Therefore, it is essential to constantly monitor the performance and integrity of slope-stabilizing structures such as Rock bolt, Nail and Pile during or after installation. We developed a novel monitoring system using Fiber Bragg Grating (FBG)sensor. It's advantages are highly sensitivity, small dimension and electro-magnetic immunity. capability of multiplexing, system integrity, remote sensing - these serve real-time health monitoring of the structures. Real-time strain measurement by the signal processing program is shown graphically and it gives a warning sound when the monitored strain state exceeds a given threshold level so that any sign of abnormal disturbance on the spot can be easily perceived.
Keywords
- real-time monitoring;
- early detection;
- fibre bragg grating sensor;
- multiplexing;
- built-in assessment;
- field application;
- slope movement