Ocean Systems Engineering

  • 제5권4호
  • /
  • Pages.279-299
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  • 2015
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Analytical study of the failure mode and pullout capacity of suction anchors in sand

  • Liu, Haixiao (State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University) ;
  • Peng, Jinsong (State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University) ;
  • Zhao, Yanbing (State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University)
  • 투고 : 2015.05.25
  • 심사 : 2015.11.27
  • 발행 : 2015.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Suction anchors are widely adopted and play an important role in mooring systems. However, how to reliably predict the failure mode and ultimate pullout capacity of the anchor in sand, especially by an easy-to-use theoretical method, is still a great challenge. Existing methods for predicting the inclined pullout capacity of suction anchors in sand are mainly based on experiments or finite element analysis. In the present work, based on a rational mechanical model for suction anchors and the failure mechanism of the anchor in the seabed, an analytical model is developed which can predict the failure mode and ultimate pullout capacity of suction anchors in sand under inclined loading. Detailed parametric analysis is performed to explore the effects of different parameters on the failure mode and ultimate pullout capacity of the anchor. To examine the present model, the results from experiments and finite element analysis are employed to compare with the theoretical predictions, and a general agreement is obtained. An analytical method that can evaluate the optimal position of the attachment point is also proposed in the present study. The present work demonstrates that the failure mode and pullout capacity of suction anchors in sand can be easily and reasonably predicted by the theoretical model, which might be a useful supplement to the experimental and numerical methods in analyzing the behavior of suction anchors.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Analysis of pullout load capacity of suction caissons in clay by a three-dimensional displacement approach 2017, https://doi.org/10.1080/1064119X.2017.1326070
  2. Evaluation of pullout load capacity of suction caissons in sand using a three-dimensional displacement approach 2017, https://doi.org/10.1080/1064119X.2017.1295120
  3. Failure mode and pullout capacity of anchor piles in soils with cohesive and cohesionless properties vol.38, pp.9, 2015, https://doi.org/10.1080/1064119x.2019.1649332
  4. A Unified Model for Analyzing Comprehensive Behaviors of Deepwater Anchors vol.9, pp.8, 2015, https://doi.org/10.3390/jmse9080913