지구물리 (Journal of the Korean Geophysical Society)

한국지구물리·물리탐사학회 (Korean Society of Earth and Exploration Geophysicists)
권호 표지

광섬유격자 센서를 활용한 사면거동 실시간 안전 진단 시스템

An Experimental Study on Density Tool Calibration

  • 발행 : 2005.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

참고문헌

  1. Ken-An Lou, Gershon Yaniv, Dirk Hhardtmann. 'Fiber Optic Strain Monitoring of Bridge Column Retrofitted with Composite jacket Under Flexural Loads', SPIE Vol. 2446, 1995, pp.16-24
  2. Richaed W. Griffiths. 'Structural Integrity Monitoring of Bridges Using Fiber Optics', SPIE Vol. 2446, 1995, pp. 127-138
  3. Jean-Marie Caussignac, Mohamed Barbachi, Alain Chabert. 'Bridge Bearings Equipped with Optical Fiber Sensor for Measuring Vertical Load through the Support', SPIE Vol. 2719, 1996, pp.220-228
  4. Whitten L. Schulz, Eric Udd, John M. Seim, and Galen E. McGill. 'Advanced Fiber Grating Strain Sensor Systems for Bridges, Structures, and Highways', SPIE Vol. 3325, 1998, pp.212-221
  5. Daniele Inaudi, Nicoletta Casanova, 'Embedded and Surface Mounted Fiber Optic Sensors for Civil Structural Monitoring' SPIE Vol. 3044, 1997, pp.236-243
  6. Whitten L. Schulw, Eric Udd, John M. Seim, and Galen E. McGill, 'Advanced Fiber Grating Strain SenSor Systems for Bridges, Structures, and High-ways', SPIE Vol. 3325, 1998, pp.212-221
  7. I. B. Kwon et al, 'Real-Time Health Monitoring of a Scaleddown Steel Truss Bridge by Passive - Quadrature 3*3 Fiber Optic Michelson Sensors, and High-ways', SPIE Vol. 3325, 1998, pp.253-261
  8. Whitten Daniele Inaudi, Nicoletta Casanova, 'Geo-structural monitoring with long-gauge interferometric Sensors', SPIE Conference on 'Nondestructive Evaluation and Health Monitoring of Aging Infrastructure', Newport Beach, USA, 5-9 March 2000
  9. Philipp M. Nellen, Rolf Bronnimann, Andreas Frank, Pascal Mauron, and Urs Sennhauser, 'Structurally Embedded Fiber Bragg Gratings: Civil Engineering Applications', Photonics East, SPIE's International Conferences on Fiber Optic Technology, ES14: Fiber Optic Sensor Technology and Application, Boston Massachusetts, USA, 19-22 Sep. 1999
  10. Philipp M. Nellen, Andreas Frank, Rolf Broonimann, and Urs Sennhauser, 'Optical Fiber Bragg Gratings for Tunnel Surveillance', SPIE's 7th International Symposium on Smart Structures and Materials, Conference on Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, Newport Beach, California, USA, Mar 5-9, 2000
  11. Ph. M. Nellen, P. Mauron, A. Frank, P. Pequignot, K. Bohnert, H. Brandle, U. Sennhauser, 'Mechanical and Optical Reliability of Fiber Bragg Grating Strain and Temperature Sensors at High Temperature'
  12. Philipp M. Nellen, Andreas Frank, Rolf Bronnimann, Urs Sennhauser, 'Fiber Optical Bragg Grating Sensors Embedded in CFRP Wires', SPIE's 6th Annual Intermational Symposium on Smart Structures and Materials, Conference on Sensory Phenomena and Measurement Instrementation for Smart Structures and Materials, Newport Beach, California. USA, March 1-5, 1999
  13. Andreas Frank, Philipp M. Nellen, and Urs Sennhauser, 'Novel Methods for Simultaneous Strain and Temperature Measurements with Optical Fiber Bragg Gratings', Photonics East, SPIE's International Conferences on Fiber Optic Technology, ES14: Fiber Optic Sensor Technology and Application, Boston Massachusetts, USA, 19-22 Sep. 1999
  14. P. Mauron, Ph. M. Nellen, U. Sennhauser, M.N. Trutzel, D. Betz, L. Staudigel, V. Hagemann, M. Rothhardt, 'Lifetime of Fiber Bragg Gratings Under Cycilc Fatigue', SPIE's International Symposium on Voice, Video, and Data Communications, Program on Optical Fiber Devices and Systems, VV12: Conference on Optical Fiber Reliability and Testing, Boston, Massachusetts, USA, 19-22 September 1999
  15. Barry G. Grossman, Li-Tien Huang, Paul J. Cosentino, and Wulf von Eckroth, 'Three-Dimensional Structural Strain Measurement with the Use of Fiber-Optic Sensors', Transportation Research Record 1596, 45-50 https://doi.org/10.3141/1596-07