한국지반공학회논문집 (Journal of the Korean Geotechnical Society)

한국지반공학회 (Korean Geotechnical Society)
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실단면 수치해석을 통한 선반식 옹벽의 최적 설계 조건

Optimal Design Conditions of Retaining Wall with Relieving Platform through Real-Scale Numerical Analysis

  • 문인종 (한국건설기술연구원 지반연구소) ;
  • 김병일 (명지대학교 토목환경공학과) ;
  • 한진태 (한국건설기술연구원 지반연구소) ;
  • Moon, In-Jong (Geotechnical Engrg. Research Institute, Korea Institute of Civil Engrg. & Building Technology) ;
  • Kim, Byoung-Il (Dept. of Civil and Environmental Engrg., Myongji Univ.) ;
  • Han, Jin-Tae (Geotechnical Engrg. Research Institute, Korea Institute of Civil Engrg. & Building Technology) ;
  • Stuedlein, Armin W. (School of Civil and Construction Engrg., Oregon State Univ.)
  • 투고 : 2016.09.06
  • 심사 : 2016.10.04
  • 발행 : 2016.10.31
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초록

캔틸레버식 옹벽의 단점을 보완하고자 개발된 선반식 옹벽은 선반 설치로 인해 옹벽에 작용하는 수평토압 크기가 감소하고 그로 인해 안정성 및 경제성에서 우수하다. 하지만 현장 적용을 위한 선반식 옹벽의 최적 설계에 대한 연구는 아직 진행된 바 없다. 본 연구에서는 옹벽 종류, 선반 위치 및 길이 등의 조건을 변화시켜 총 40개 단면에 대해 수치해석을 수행하였으며, 수평토압 감소효과와 안정성 검토를 통해 선반식 옹벽의 최적 설계 조건을 제시하고자 하였다. 연구결과, 선반식 옹벽 설계 시 선반의 최적 위치는 h/H=0.50, 최적 길이는 최소 b/L=0.45 이상을 만족하도록 설계하는 것이 가장 바람직한 것으로 나타났다.

Retaining wall with relieving platform has advantages in terms of stability and costs because it decreases the earth pressure by installing the relieving platform. However, there have not been previous studies of the optimal design for the retaining wall with reliving platform in practice. In this study, the optimal design conditions of the retaining wall with relieving platform are proposed by evaluating the reduction effect of lateral earth pressure based on the numerical analysis of 40 cross sections by changing wall types, wall heights, shelf locations and lengths. As a result, the optimal location of a shelf is the central part of a retaining wall (h/H=0.50) and the optimal length is recommended to be designed to satisfy b/L=0.45, at least.

키워드

참고문헌

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피인용 문헌

  1. Investigation of Influencing Factors on the Deformation of Sheet Pile Wall with a Relieving Platform vol.2021, pp.None, 2016, https://doi.org/10.1155/2021/6641072