Browse > Article

Case Study on the Impact-Echo Method for Tunnel Safety Diagnosis  

Shin, Sung-Ryul (한국해양대학교 에너지자원공학과)
Jo, Cheol-Hyun (지하정보기술(주))
Publication Information
Tunnel and Underground Space / v.19, no.1, 2009 , pp. 19-30 More about this Journal
Abstract
For the purpose of determining the thickness of concrete lining and detect of the cavity where may be located behind tunnel lining, IE (Impact-Echo) method it effectively useful in the tunnel safety diagnosis and the quality control during the construction. As a part of case study, we applied IE method to various tunnel structure types such as road tunnel and subway tunnel constructed by NATM (New Austrian Tunnelling Method) and ASSM (American Steel Support Method). As tunnel specifications estimated from this method were compared with coring data, design drawing and other survey results, it was very good agreement with each other. In conclusion, we verified that IE method shows an accurate and reliable result. The conventional interpretation of IE method in frequency domain gives only vertical information at a certain point. However, the interpretation using time-frequency analysis and depth section imaging technique from two dimensional profiling surveys can show more reliable information about structure inside.
Keywords
Impact-Echo method; Tunnel structure; Safety diagnosis; Non-destructive test; Depth section imaging;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김학수, 임해룡, 배성호, 1999, 'GPR에 의한 지반 구조물 탐사', 한국지구물리학회 학술발표대회 논문집, p.65-91
2 신성렬, 조철현, 신창수, 양승진, 장원일, 1998, 'GPR 및 단일채널 탄성파탐사에 의한 터널라이닝 배면공동 조사', 한국구조물진단학회지, Vol.2, No.4, pp.148-158
3 Sansalone, M. J., Streett, W. B., and Jaeger, B. J., 1995, 'Seminar on the principles of impact-echo and use of the DOCTER impact-echo field instrument', Cornell univ
4 김동수, 박형춘, 이광명, 1995, '충격반향기법과 표면파 기법을 이용한 콘크리트 부재의 비파괴검사', 한국콘크리트학회 추계학술발표회 논문집, pp.164-168
5 시설안전기술공단, 1996, '안전점검 및 정밀안전진단 세부지침(터널편)'
6 신성렬, 2000, '시간-주파수 분석을 이용한 충격반향법 자료의 해석', 한국자원공학회지, Vol.37, No.6, p.432-438
7 김영근, 장정범, 정한중, 조철현, 1996, '터널라이닝 건전도 평가를 위한 비파괴 조사법의 적용연구', 대한토목학회 학술발표회 논문집(II), pp.383-386
8 권형석, 설순지, 서정희, 장현삼, 임해룡, 홍재호, 1997, 'GPR을 이용한 터널 라이닝 두께 검측', 1997년 한국지구시스템공학회 춘계학술발표대회 논문집, p.132-137
9 신성렬, 이성민, 장원일, 2000, '터널 콘크리트 구조물의 안전진단을 위한 충격반향법 실험', 한국자원공학회지, Vol.37, No.4, p.240-248
10 이세경, 김영환, 구자용, 김병주, 김영길, 1988, '콘크리트 구조물에 대한 초음파 탐상법 개발(III)', 과학기술처 특정연구개발사업 연구보고서, KSRI-88-88-IR, 과학기술처
11 Haack, A., Schreyer, J., and Jackel, G., 1995, 'State-of-the-art of Non-destructive testing methods for determining the state of a tunnel lining', Tunnelling and undergroud space technology, v.10, No.4, pp.413-431   DOI   ScienceOn