Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Development of Offshore Piles with Enlarged Upper Section

상부단면 확대형 해상 말뚝의 개발

  • Kwon, O-Soon (Coastal Engineering Research Department, Korea Ocean Research and Development Institute) ;
  • Jang, In-Sung (Coastal Engineering Research Department, Korea Ocean Research and Development Institute) ;
  • Kwon, Young-Ho (Halla Engineering and Constructio Corp.) ;
  • Ki, Min-Joo (Halla Engineering and Constructio Corp.)
  • 권오순 (한국해양연구원 연안개발.에너지연구부) ;
  • 장인성 (한국해양연구원 연안개발.에너지연구부) ;
  • 권영호 (한라건설(주) 기술연구소) ;
  • 기민주 (한라건설(주) 기술연구소)
  • Published : 2009.12.31
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Abstract

In this study, new type of pile foundation was introduced for the better performance of lateral resistance than conventional piles by adopting enlarged upper section, because offshore structure design is subjected to the lateral loading. The numerical simulations were peformed in order to find out the lateral behaviour of the proposed pile. The economical efficiency of new pile system was also analyzed by considering the construction characteristics and material costs as well as the real field condition of harbor sites in Korea. From the study, it was revealed that the lateral resistance of piles with enlarged upper section is increased compared to conventional steel pile, and the construction costs would be reduced to about 62~80% of previous methods.

해양에서는 횡방향 하중에 의해 구조물 기초의 설계가 좌우되기 때문에 이 연구에서는 기존의 말뚝 기초 공법보다 횡방향 지지력이 크고 시공성능이 우수한 새로운 형식의 말뚝 기초 공법을 제안하였다. 제안한 기초에 대한 성능을 평가하기 위하여 수치해석을 수행하였으며, 기존 항만 현장 조건에 대입하여 설계를 수행하여 시공 특성과 재료비 감소 효과를 통한 경제성 평가를 수행하였다. 연구에서 강관말뚝에 비해 횡방향 지지력의 증가를 확인하였으며, 기존 공법과 비교하여 공사비용은 62~80%정도로 평가되었다.

Keywords

References

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