Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Behavior of Back Ground of the Laterally Loaded Single Pile

수평하중이 작용하는 단독말뚝의 배면지반의 저항거동 특성

  • Bae, Jong-Soon (Dept. of Civil Eng., Gyeongsang National Univ., Eng. Research Institute) ;
  • Kim, Sung-Ho (Dept. of Civil Eng., Gyeongsang National Univ., Eng. Research Institute, KD E&C)
  • 배종순 (경상대학교 건설공학부 토목공학과, 경상대학교 공학연구원) ;
  • 김성호 (경상대학교 공학연구원, KD이엔씨)
  • Published : 2008.08.31
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Abstract

In this study, various kinds of behavior characteristics such as deformation area zone of back ground, failure angle and rotation point are examined on the laterally loaded single pile in the homogeneous ground through a model test. The main obtained conclusions are summarized as follows; In the back ground of single pile to which the lateral load is applied, failure surface shows almost linear movement characteristics and it is inclined to converge to constant values no matter how the length of pile and the pile head displacement.

본 연구에서는 균질 지반에 매설된 단독말뚝에 수평하중이 작용할 경우 말뚝 배면지반에서 발생되는 여러 가지 거동 특성, 즉 말뚝 배면지반의 변형영역, 파괴면의 경사각, 그리고 회전절점과 같은 거동 특성을 모형실험을 통하여 규명하고자 모형실험을 수행하였다. 이는 말뚝의 휨력에 대한 저항력 산정에 매우 중요한 사항이다. 그 결과 다음과 같은 결과를 얻을 수 있었다. 수평하중이 작용하는 단독말뚝 배면지반에서 쐐기 파괴면은 거의 선형적인 거동 특성을 나타내고, 말뚝과 파괴면이 이루는 경사각은 말뚝 길이, 말뚝 두부의 변위에 상관없이 지반의 상대밀도 증가에 따라 조금씩 증가하다 일정한 값으로 수렴하는 경향을 나타낸다.

Keywords

References

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