Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Numerical Analysis of Peak Uplift Resistance of Buried Pipeline in Sand and Soft Clay

연약 점토와 사질토에 묻힌 파이프라인의 극한 인발저항력 산정

  • Kwon, Dae-Hean (Ocean Engineering Department, Korea Maritime and Ocean University) ;
  • Seo, Young-Kyo (Ocean Engineering Department, Korea Maritime and Ocean University)
  • 권대헌 (한국해양대학교 해양공학과) ;
  • 서영교 (한국해양대학교 해양공학과)
  • Received : 2017.02.14
  • Accepted : 2017.06.22
  • Published : 2017.06.30
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Abstract

Subsea pipelines are one of the most important structures used to transport fluids such as oil and natural gas in offshore environments. The uplift behavior of the pipeline caused by earthquakes and buoyancy can result in a pipeline failure. The objective of this study is to examine the peak uplift resistance through parametric studies with numerical modeling by PLAXIS 3D Tunnel. The effects of the embedment ratio and pipe diameter were first examined for uplift resistance in sand and soft clay conditions. Then the length of geogrid layers and the number of geogrid layers were examined in terms of ability to resist uplift behavior.

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References

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