한국지반공학회논문집 (Journal of the Korean Geotechnical Society)

  • 제33권9호
  • /
  • Pages.49-60
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  • 2017
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  • 1229-2427(pISSN)
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  • 2288-646X(eISSN)
한국지반공학회 (Korean Geotechnical Society)
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동적 수평하중에 의한 단일 경사말뚝의 거동특성

Behaviour Characteristics of Single Batter Pile under Dynamic Lateral Loads

  • 김지성 (전주비전대학교 지적토목학과) ;
  • 노정섭 (경기방재연구소) ;
  • 강기천 (경상대학교 토목공학과 공학연구원)
  • Kim, Jiseong (Dept. of Cadastre & Civil Eng., Vision College of Jeonju) ;
  • Noh, Jeongseob (Dept., Gyeonggi Disaster Management Institute) ;
  • Kang, Gi-Chun (Dept. of Civil Engrg., Engrg. Research Institute, Gyeongsang National Univ.)
  • 투고 : 2017.08.09
  • 심사 : 2017.09.20
  • 발행 : 2017.09.30
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초록

본 연구는 모형시험을 통해 반복수평하중이 작용하는 단일경사말뚝의 거동 특성을 파악하고자 한다. 반복하중은 일방향과 양방향으로 작용 시켰으며, 지반의 상대밀도를 달리하여 수평저항력과 휨모멘트의 변화 등을 분석하였다. 그 결과, 일방향 및 양방향 반복수평하중이 작용할 경우 Out batter, Plumb, In batter 순으로 수평저항력과 최대 휨모멘트는 증가하였다. 최대 휨모멘트 발생위치는 일방향 보다 양방향 반복수평하중을 가할 때 조금 더 깊은 곳에서 나타났다. 또한, 상층의 모멘트는 Out batter, Plumb, In batter 순으로 모멘트가 증가하나 하층의 경우 Out batter, Plumb, In batter 순으로 감소하였고 일방향에 비해 양방향 반복수평하중이 작용할 때 상 하층의 모멘트 변화가 작게 나타났다.

The purpose of this study is to investigate the behavior of a single batter pile with repeated lateral loading through model tests. Repeated loads were applied in one direction and two directions, and lateral resistance and bending moment were analyzed by varying the relative density of the ground. As a result, lateral resistance and maximum bending moment were increased in the order of Out batter, Plumb, and In batter when one-way and two-way dynamic lateral loads were applied. The depth at the maximum bending moment was more deeper with the loading. The moments at bottom layer were decreased in the order of Out batter, Plumb, and In batter but upper moments were increased with the same order. Also, various bottom and upper moments were small when the two-way dynamic lateral load was applied compared to one-way lateral load.

키워드

참고문헌

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