DOI QR코드

DOI QR Code

Stability Analysis According to the Shape of Assembled Earth Retaining Wall by the Field Model Tests and 3D-Numerical Analysis

현장모형실험과 3D 수치해석을 통한 AER 조립식 지주옹벽의 형태에 따른 안정성 분석

  • 서민수 (부산대학교 사회환경시스템공학부 토목공학과) ;
  • 임종철 (부산대학교 사회환경시스템공학부 토목공학과) ;
  • 손수원 (부산대학교 사회환경시스템공학부 토목공학과) ;
  • 김홍선 (부산대학교 사회환경시스템공학부 토목공학과) ;
  • 최중현 (부산대학교 사회환경시스템공학부 토목공학과) ;
  • 김창영 (부산대학교 생산기술연구소)
  • Received : 2016.10.06
  • Accepted : 2017.01.03
  • Published : 2017.01.31

Abstract

There are many limitations for ensuring structural stability of retaining wall. Especially, L-shaped retaining wall and gravity retaining wall need large space, and massive concrete, respectively. Assembled Earth Retailing (AER) wall was developed to overcome the shortcomings. In this paper, stability of AER wall is verified by field model tests and the 3D-numerical analysis. The results show that horizontal displacement of AER wall was reduced by maximum 67.84% for conventional retaining walls, and earth pressure acting on the retaining wall was reduced by maximum 73.19%.

옹벽 중 일반적으로 많이 사용되고 있는 L형 옹벽은 배면에 공간이 많이 필요하고, 중력식 옹벽은 단면이 크다. 이러한 단점을 보완하고 역학적 안정성을 높이기 위해 AER옹벽이 개발되었다. 본 논문에서는 현장모형실험과 3D 수치해석을 통해 AER옹벽의 거동을 분석하였다. 그 결과, 기존 옹벽에 비해서 수평변위가 최대 67.84%가 감소하였고, 토압이 최대 73.19% 감소하여 AER옹벽의 높은 구조적인 안정성을 확인하였다.

Keywords

References

  1. Kim, C. Y, Kwon, J. G., Im, J. C., and Hwang, S. P. (2012), "A Method for Analyzing the Self-Supported Earth-Retaining Structure Using Stabilizing Piles", Marine Georesources & Geotechnology, Vol.30, No.4, pp.313-332. https://doi.org/10.1080/1064119X.2011.626669
  2. Im, J. C. (2016), A guide for soil engineering 4th, POD of CIR, Seoul, pp.388-393 (in Korean).
  3. Jeong, D. U., Im, J. C., Yoo, J. W., Seo, M. S., Koo, Y. M., and Kim, S. J. (2013), "An Experimental Study on the Inclined Earth Retaining Structure in Clay", Journal of the Korean Geotechnical Society, Korean Geotechnical Society, Vol.29, No.6, pp.63-75 (in Korean). https://doi.org/10.7843/kgs.2013.29.6.63
  4. Rankine, W.M.J. (1857), "On Stability on Loose Earth", Philosophic Transactions of Royal Society, London, Part I, 9-27.
  5. Seo, M. S., Im, J. C., Jeong, D. U., Yoo, J. W., Koo, Y. M., and Kim, G. H. (2012), "An Experimental Study on the Stability of Inclined Earth Retaining", Journal of the Korean Geotechnical Society, Korean Geotechnical Society, Vol.28, No.12, pp.99-110 (in Korean). https://doi.org/10.7843/kgs.2012.28.12.99
  6. Seo, M. S., Im, J. C., Kim, J. S., Beak, S. M., Kim, J. Y., and Kim, C. Y. (2015), "A Study on the Effect for Restraining Lateral Displacement of Inclined Earth Retaining Wall through the Field Experiment", Journal of the Korean Society of Hazard Mitigation, Korean Society of Hazard Mitigation, Vol.15, No.3, pp.255-264 (in Korean). https://doi.org/10.9798/KOSHAM.2015.15.3.255
  7. Seo, M. S., Im, J. C., Kim, C. Y., and Yoo, J. W. (2016), "A Study on the Applicability of Retaining Wall Using Batter Piles in Clay", Canadian Geotechnical Journal, The Canadian Geotechnical Society, Vol.53, No.8, pp.1195-1212. https://doi.org/10.1139/cgj-2014-0264
  8. Yoo, J. W., Im, J. C., Hwang, S. P., Kim, C. Y., Choi, J. H., and Kim, H. S. (2015), "An Experimental Study on the Stability of Assembled Earth Retaining Wall in Sandy Ground", Journal of the Koeran Geotechnical Society, Koeran Geotechnical Society, Vol.32, No.2, pp.43-52 (in Korean).
  9. Hwang, S. P. (2014), Study on the Characteristics of Assembled Earth Retaining Wall, Ph.D. Dissertation, Pusan National University, pp.56-81 (in Korean).