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2016 Vol.32, Issue 2 Preview Page
An Experimental Study on the Stability of Assembled Earth Retaining Wall in Sandy Ground

사질토 지반에 설치된 조립식 지주옹벽(AER)의 안정성에 관한 실험적 연구

Jae-Won Yoo1
,
Jong-Chul Im2*
,
Sung-Pil Hwang3
,
Chang-Young Kim4
,
Jung-Hyun Choi5
,
Hong-Sun Kim5
유 재원1
,
임 종철2*
,
황 성필3
,
김 창영4
,
최 중현5
,
김 홍선5
1Graduate Student, Dept. of Civil Engng., Pusan National Univ.
2Prof. Dept. of Civil Engng., Pusan National Univ.
3Senior Researcher, Geotechnical Engng. Research Institute, KICT
4Researcher of RIIT, Pusan National Univ.
5Graduate Research Assistant, Dept. of Civil Engng., Pusan National Univ.
1부산대학교 사회환경시스템공학부 토목공학과 박사과정
2부산대학교 사회환경시스템공학부 토목공학과 정교수
3한국건설기술연구원 지반연구소 박사 후 연구원
4부산대학교 생산기술연구소 특별연구원
5부산대학교 사회환경시스템공학부 토목공학과 박사과정
*교신저자. *Corresponding Author. 
28 February 2016. pp. 53-52
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Abstract

Assembled Earth Retaining wall (AER-wall is used here) using back pile (back supporting beam is used from here) has been developed at Pusan National University. Both cost and time have been significantly reduced because AER-wall can be fabricated in a shop. Also its stability has been improved with a back supporting beam reducing earth pressure. In this study, the test results were analyzed after laboratory model tests were performed. The lateral displacement of AER-wall significantly decreased with both inclined wall and back supporting beams. As a result, the stability of AER-wall and effect of back supporting beam have been analyzed and verified.

Keywords
Assembled Earth Retaining Wall
Model test
back supporting beam
Lateral displacement ratio
Surcharge ratio
Area ratio

배면말뚝(이하 지주보)을 사용한 조립식 지주옹벽(Assembled Earth Retaining Wall; AER옹벽)을 개발하였다. AER옹벽은 공장에서 제작되어 현장에서 조립하여 완성되는 옹벽으로 품질의 확실성 및 공기를 단축할 수 있다. 또한 지주보에 의한 토압 감소효과로 안정성을 높일 수 있다. 본 연구에서는 AER옹벽의 안정성과 지주보의 효과를 확인하기 위해 실내모형실험을 진행하였다. 실내모형실험의 결과 지주보를 설치함으로써 AER옹벽의 수평변위가 효과적으로 감소하는 것으로 분석되었고, 옹벽의 기울기와 지주보의 면적비에 따른 효과가 분석되었다.

References
1
1.Im, J. C. (2013), A guide for soil engineering 3th, POD of CIR, Seoul, pp.468-475.
2
2.Ko, H. S., Im, J. C., Park, L. K., and Oh, M. L. (1996), “Model Tests on the behaviour of Sandy Ground during Tunneling”, Journal of the Korean Society of Civil Engineers, Vol.1996, No.2, pp.371-374.
3
3.Park, L. K. (2003), A Study on the Characteristic of Ground Behaviour and Settlement Restraining effect of Micropile during Shallow Tunnel Construction in Soft Ground, Ph.D. Thesis, Pusan National University, pp.110-147.
4
4.Son, J. H., Im, J. C., Park, L. K., and Lee, T. H. (2003), “A Study on the Group Effect of Micropiles Installed Beneath Shallow Foundations”, Journal of the Korean Society of Civil Engineers, Vol.2003, No.10, pp.3354-3357.
5
5.Bautista, F. E., Park, L. K, Im, J. C., and Lee, Y. N. (2006), “Variation of Earth Pressure Acting on Cut-and-Cover Tunnel Lining with Settlement of Backfill”, Journal of the Korean Geotechnical Society, Vol.22, No.6, pp.27-40.
6
6.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 Koeran Geotechnical Society, Vol.28, No.12, pp.99-110.
Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 32
  • No :2
  • Pages :53-52
  • Received Date : 2016-01-15
  • Revised Date : 2016-02-19
  • Accepted Date : 2016-02-19
  • DOI :https://doi.org/10.7843/kgs.2016.32.2.43
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