Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지
DOI QR코드

DOI QR Code

Seismic Performance Evaluation of the Underground Utility Tunnel by Response Displacement Method and Response History Analysis

응답변위법과 응답이력해석법을 이용한 지중 공동구의 내진성능 평가

  • Kwon, Ki-Yong (Dept. of Civil and Environmental Eng., Wonkwang Univ.) ;
  • Lee, Jin-Sun (Dept. of Civil and Environmental Eng., Wonkwang Univ.) ;
  • Kim, Yong-Kyu (ESCO Consultant and Engineers Company) ;
  • Youn, Jun-Ung (Disaster Status Control Office, Korea Infrastructure Safety & Technology Corporation) ;
  • Jeong, Soon-Yong (Nada Construction Research Institute)
  • 권기용 (원광대학교 토목환경공학과) ;
  • 이진선 (원광대학교 토목환경공학과) ;
  • 김용규 ((주)에스코컨설턴트) ;
  • 윤준웅 (한국시설안전공단 재난상황실) ;
  • 정순용 (나다건설 기술연구소)
  • Received : 2020.10.23
  • Accepted : 2020.11.07
  • Published : 2020.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Underground utility tunnel, the most representative cut and cover structure, is subjected to seismic force by displacement of the surrounding soil. In 2020, Korea Infrastructure Safety Corporation has published "Seismic Performance Evaluation Guideline for Existing Utility Tunnel." This paper introduces two seismic evaluation methods, RDM (Response Displacement Method) and RHA (Response History Analysis) adopted in the guide and compares the methods for an example of an existing utility tunnel. The test tunnel had been constructed in 1988 and seismic design was not considered. RDM is performed by single and double cosine methods based on the velocity response spectrum at the base rock. RHA is performed by finite difference analysis that is able to consider nonlinear behavior of soil and structure together in two-dimensional plane strain condition. The utility tunnel shows elastic behavior for RDM, but shows plastic hinge for RHA under the collapse prevention level earthquake.

지중공동구는 대표적인 개착식 지중구조물로, 지진시 지반의 변위로 인한 지진력이 작용하는 구조물이다. 시설안전기술공단에서는 2020년에 기존 시설물(공동구) 내진성능 평가요령을 제정하여 배포하였다. 본 논문에서는 내진성능평가요령에서 제시하고 있는 두 가지 성능평가방법인 응답변위법과 응답이력해석기법을 소개하고, 대표 공동구에 대해서 두 가지 내진성능평가방법을 적용하여 그 결과를 비교·검토 하였다. 평가에 사용된 공동구는 1988년 건설되어 내진설계가 적용되지 않은 공동구 이다. 응답변위법은 기반면 속도응답스펙트럼으로부터 단일코사인과 이중코사인 방법을 적용하여 내진성능평가를 실시하였다. 응답이력해석은 지반과 구조재료 모두 비선형 거동을 나타낼 수 있는 유한차분해석프로그램을 사용하여 2차원 평면변형율 해석을 시행하였다. 붕괴방지 수준의 지진에 대한 성능평가 결과 응답변위법은 구조물이 탄성범위내 거동하는 것으로 평가되는 반면, 응답이력해석은 구조물 일부에서 소성힌지가 발생하는 결과를 나타내었다.

Keywords

References

  1. Choo, Y. W. and Kim, D. S. (2001), "Dynamic Deformation Characteristics of Cohesionless Soils in Korea Using Resonant Column Tests", Journal of the Korean Geotechnical Society, Vol.17, No.5, pp.115-128.
  2. Dokainish, M. A. and Subbaraj, K. (1989), "A Survey of Direct Time-Integration Methods in Computational Structural Dynamics -I. Explicit Methods", Computers & Structures, Vol.32, No.6, pp. 1371-1386. https://doi.org/10.1016/0045-7949(89)90314-3
  3. Itasca Consulting Group (2020), FLAC 2D (Fast Lagrangian Analysis of Continua in 2 Dimensions) User's Guide, Minnesota, USA.
  4. Kim, D. K., Seo, H. Y., Park, J. W., and Choi, I. J. (2006), "Earthquake Response Analyses of Underground Structures Using Displacement Responses of Soil", Journal of the Korea Institute for Structural Maintenance and Inspection, Vol.10, No.6, pp.133-142.
  5. Korea Infrastructure Safety Corporation (KISTEC) (2020), Seismic Performance Evaluation Guideline for Existing Structures (Foundation and Geotechnical Structures), Available at : https://www.kistec.or.kr/
  6. Korea Infrastructure Safety Corporation (KISTEC) (2020), Seismic Performance Evaluation Guideline for Existing Structures (Utility Tunnel), Available at : https://www.kistec.or.kr/
  7. Lee, J. S., Liu, Q. H., and Park, H. J. (2019), "Effect of Earthquake Motion on The Permanent Displacement of Embankment Slopes", KSCE Journal of Civil Engineering, Vol.23, No.10, pp.4174-4189. https://doi.org/10.1007/s12205-019-1833-0
  8. MIDAS Information Technology (2019), MIDAS Civil On-line Manual, Available at : http://manual.midasuser.com/
  9. Ministry of Land, Infrastructure and Transport (MOLIT) (2018), Seismic Design Standard of Metro, Available at : https://kcsc.re.kr/
  10. Ministry of Land, Infrastructure and Transport (MOLIT) (2016), Safety Evaluation Standard for the Existing Concrete Structures, KDS 14 20 90 : 2016, Available at : https://kcsc.re.kr/
  11. Ministry of Land, Infrastructure and Transport (MOLIT) (2018), Seismic Design Standard of Tunnel, KDS 11 44 00 : 2018, Available at : https://kcsc.re.kr/
  12. Ministry of Land, Infrastructure and Transport (MOLIT) (2018), Seismic Design Standard of Tunnel, KDS 27 17 00 : 2018, Available at : https://kcsc.re.kr/
  13. Rollins, K. M., Evans, M. D., Diehl, N. B., and William, D. D. III. (1998), "Shear Modulus and Damping Relationships for Gravels", Journal of Geotechnical and Geo-environmental Engineering, Vol. 124, No.5, pp.396-405. https://doi.org/10.1061/(asce)1090-0241(1998)124:5(396)
  14. Seed, H. B. and Idriss, I. M. (1970), Soil Moduli and Damping Factors for Dynamic Response Analyses, Report EERC 70-10. University of California, Berkeley.
  15. Special Act on the Safety Control And Maintenance of Establishments (2018), Available at : https://elaw.klri.re.kr/
  16. Subbaraj, K. and Dokainish, M. A. (1989), "A Survey of Direct Time-Integration Methods In Computational Structural Dynamics -Ii. Implicit Methods", Computers & Structures, Vol.32, No.6, pp. 1387-1401. https://doi.org/10.1016/0045-7949(89)90315-5
  17. Uenishi, K. and Sakurai, S. (2000), "Characteristic of the Vertical Seismic Waves Associated with the 1995 Hyogo-Ken Nanbu (Kobe), Japan Earthquake Estimated from the Failure of the Daikai Underground Station", Earthquake Engng. Struct. Dyn., Vol.29, Issue 6, pp.813-821. doi:10.1002/(SICI)1096-9845(200006)29:6<813::AIDEQE939>3.0.CO;2-E
  18. Vucetic, M. and Dobry, R. (1991), "Effect of Soil Plasticity on Cyclic Response", Journal of Geotechnical Engineering, Vol.117, No.1, pp.89-107. https://doi.org/10.1061/(asce)0733-9410(1991)117:1(89)