한국구조물진단유지관리공학회 논문집 (Journal of the Korea institute for structural maintenance and inspection)

  • 제16권6호
  • /
  • Pages.82-92
  • /
  • 2012
  • /
  • 2234-6937(pISSN)
  • /
  • 2287-6979(eISSN)
한국구조물진단유지관리공학회 (Korea Institute for Structural Maintenance Inspection)
권호 표지
DOI QR코드

DOI QR Code

확장형 공통중간점법 기반 지표투과레이더를 이용한 콘크리트 교량 바닥판 열화 상태 평가

Evaluation of Concrete Bridge Deck Deterioration Using Ground Penetrating Radar Based on an Extended Common Mid-Point Method

  • 백종은 (세종대학교 건설환경공학과) ;
  • 이현종 (세종대학교 건설환경공학과) ;
  • 오광진 (한국시설안전공단 기술본부 시설안전연구소) ;
  • 엄병식 (한국건설기술연구원 SOC성능연구소 도로연구실)
  • 투고 : 2012.07.23
  • 심사 : 2012.09.21
  • 발행 : 2012.11.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구에서는 콘크리트 교량 바닥판의 열화를 비파괴시험인 지표투과레이더(GPR)를 이용하여 평가하는 방법을 개발하였다. 콘크리트 교량 바닥판의 유전 상수를 계산하기 위하여 비접촉식 GPR 안테나를 이용하여 2층 구조체에 적용할 수 있는 확장형 공통중간점 방법을 개발하였다. 콘크리트 교량 바닥판의 열화 깊이와 열화 상태는 콘크리트 교량 바닥판의 유전 상수와 표면대비 평균 유전상수비를 이용하여 평가하였다. 제안된 방법을 검증하기 위하여 GPR 현장 시험을 공용수명이 오래된 콘크리트 교량에서 실시하였다. 시험 결과 새로 제안된 방법을 이용하여 추정된 두께와 열화 깊이가 어느 정도 신뢰성을 가지는 것으로 나타났다.

This study proposed a new non-destructive evaluation method for concrete bridge deck deterioration using ground penetrating radar (GPR). To calculate dielectric constant of the concrete bridge deck, an extended common mid-point (XCMP) method was developed for a two-layered structure using an air-coupled GPR antenna setup. The deterioration conditions of the concrete bridge deck such as deterioration depth was evaluated based on the dielectric constant and surface-to-average dielectric constant ratio of the concrete bridge deck. A GPR field test was conducted on an old concrete bridge with asphalt concrete surfacing to validate the new evaluation method. The test results showed that the newly proposed method estimated pavement thickness and deterioration depth of the concrete deck in a reasonable level.

키워드

참고문헌

  1. Al-Qadi, I. L. and Lahouar, S., "Measuring Layer Thicknesses with GPR: Theory to Practice", Construction and Building Materials, vol. 19, No. 10, 2005, pp.763-772. https://doi.org/10.1016/j.conbuildmat.2005.06.005
  2. ASTM D 6087-08, "Standard Test Method for Evaluating Asphalt-Covered Concrete Bridge Decks Using Ground Penetrating Radar", American Society for Testing and Materials (ASTM), 2008.
  3. Broomfield, J. P., Corrosion of Steel in Concrete: Understanding, Investigation an Repair, E&FN Spon, London, 2007.
  4. Gucunski, N. and Rascoe, C., "Advanced Ground Penetrating Radar Data Collection and Imaging of Bridge Decks Using 3-D Radar", Report UVM-RU3757, Federal Highway Administration (FHWA), University of Vermont, Virginia, USA, 2008.
  5. Gucunski, N., Nazarian, S., Wiggenhauser, H. and Kutrubes, D., "Nondestructive Testing to Identify Concrete Bridge Deck Deterioration", Presented at the SHRP 2 Workshop, Brussels, Belgium, June 10th, 2010.
  6. Hugenschmidt, J. and Mastrangelo, R., "GPR Inspection of Concrete Bridges", Cement and Concrete Composites, vol. 28, No. 4, 2006, pp.384-392. https://doi.org/10.1016/j.cemconcomp.2006.02.016
  7. Jol, H. M. Ground Penetrating Radar Theory and Applications, Elsevier, B. V., 2009, p.36.
  8. Lahouar, S., Al-Qadi, I. L., Loulizi, A., Clark, T. M. and Lee, D. T., "Approach to Determining In Situ Dielectric Constant of Pavements-Development and Implementation at Interstate 81 in Virginia", Transportation Research Record, No. 1806, 2002, pp.81-87.
  9. Leng, Z., "Prediction of In Situ Asphalt Mixture Density Using GPR Theoretical Development and Field Verification", Ph.D. Dissertation, University of Illinois at Urbana- Champaign, Illinois, USA, 2011.
  10. Maser, K. R., "Integration of Ground Penetrating Radar and Infrared Thermography for Bridge Deck Condition Evaluation", Presented at Non-Destructive Testing in Civil Engineering Conference, Nantes, France, June 30th - July 3rd, 2009.
  11. Park, J., Lee, S., Kim, J., Park, C. and Lee, D., "The Prediction of Remaining Life of Concrete Bridge Decks Using the Reliability Analysis", International Journal of Highway Engineering, Korea Society of Road Engineers, vol. 13, No. 4, 2011, pp.71-79. https://doi.org/10.7855/IJHE.2011.13.4.071
  12. Robert, A., "Dielectric Permittivity of Concrete Between 50 MHz and 1 GHz and GPR Measurements for Building Materials Evaluation", Journal of Applied Geophysics, vol. 40, No. 1-3, 1999, pp.89-94.
  13. Seo, J., Lee, J. and Lee, I., "Condition Evaluation of Concrete Bridge Decks Using GPR", Journal of the Korea Institute for Structural Maintenance Inspection, vol. 4, 2000, pp.101-107.
  14. Seo, J., Lee, J. and Lee, I., "Condition Evaluation of Concrete Bridge Decks Using Radar", Proceedings of 1999 KSCE Conference, Seoul, Korea, 1999, pp.421-424.
  15. Suh, J., Rhee, J., Ku, B., Park, C. and Shin, J., "The Proposal of Efficient Inspection for Concrete Bridge Decks has Asphalt Overlay", Proceedings of the KCI Fall Conference, 2008, pp.157-160.
  16. Tuttle, R. S., "Condition Analysis of Concrete Bridge Decks in Utah", M. S. Thesis, Bringham Young University, Utah, USA, 2005.