Geomechanics and Engineering

  • 제18권2호
  • /
  • Pages.153-159
  • /
  • 2019
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Performance of novel dynamic installed anchors during installation and monotonic pullout

  • Kim, Youngho (Centre for Offshore Foundation Systems (COFS), The University of Western Australia) ;
  • Rosher, Lachlan Thomas (Centre for Offshore Foundation Systems (COFS), The University of Western Australia)
  • 투고 : 2018.11.13
  • 심사 : 2019.05.13
  • 발행 : 2019.06.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper examines the results from three-dimensional dynamic finite element analysis undertaken to develop a new dynamically installed anchor (DIA). Several candidate shapes of new DIAs were selected after an investigation into previous researches of existing DIA designs. The performances of selected DIAs during the installation and loading in non-homogeneous clay were investigated through large deformation finite element (LDFE) analyses. Findings were compared to the current anchors in operation (i.e., Torpedo and Omni-Max DIA) to assess the viability of the new designs in the field. Overall, the anchor embedment depths of the novel DIAs lied under the results of OMNI-Max DIA. And also, the tracked anchor trajectory confirmed that, the novel DIAs dove deeper with stiffer travelling angle, compared to the OMNI-Max DIA. These elements are more critical and beneficial especially in a field where the achieved embedment depths are generally low.

키워드

참고문헌

  1. Aubeny, C. Murff, J. and Roesset, J. (2001), "Geotechnical issues in deep and ultra deep waters", Int. J. Geomech., 1(2), 225-247. https://doi.org/10.1080/15323640108500154.
  2. Bhattacharya, P. (2017), "Pullout capacity of shallow inclined anchor in anisotropic and nonhomogeneous undrained clay", Geomech. Eng., 13(5), 825-844. https://doi.org/10.12989/gae.2017.13.5.825.
  3. Bhattacharya, P. and Roy, A. (2016), "Improvement in uplift capacity of horizontal circular anchor plate in undrained clay by granular column", Geomech. Eng., 10(5), 617-633. https://doi.org/10.12989/gae.2016.10.5.617.
  4. Bhattacharya, P. and Sahoo, S. (2017), "Uplift capacity of horizontal anchor plate embedded near to the cohesionless slope by limit analysis", Geomech. Eng., 13(4), 701-714. https://doi.org/10.12989/gae.2017.13.4.701.
  5. Chang, K. Hossain, M.S., Kim, Y.H. and Randolph, M.F. (2018), "Novel dynamically installed fish anchor-diving upon pullout in calcareous silt", Proceedings of the Offshore Technology Conference, Houston, Texas, U.S.A., April-May.
  6. Choi, E.Y., Cho, J.R., Cho, Y.U., Jeong, W.B., Lee, S.B., Hong, S.P. and Chun, H.H. (2015), "Numerical and experimental study on dynamic response of moored spar-type scale platform for floating offshore wind turbine", Struct. Eng. Mech., 54(5), 909-922. https://doi.org/10.12989/sem.2015.54.5.909.
  7. Dassault Systemes (2012), ABAQUS, Version 6.12 EF Documentation, Hibbitt, Karlsson and Sorensen, Inc., Rhode Island, U.S.A.
  8. Einav, I. and Randolph, M.F. (2005), "Combining upper bound and strain path methods for evaluating penetration resistance", Int. J. Numer. Meth. Eng., 63(14), 1991-2016. https://doi.org/10.1002/nme.1350.
  9. Emirler, B., Tolun, M. and Laman, M. (2016), "Experimental investigation of the uplift capacity of group anchor plates embedded in sand", Geomech. Eng., 11(5), 691-711. https://doi.org/10.12989/gae.2016.11.5.691.
  10. Hossain, M.S. and Randolph, M.F. (2009). "Effect of strain rate and strain softening on the penetration resistance of spudcan foundations on clay", Int. J. Geomech., 9(3), 122-132. https://doi.org/10.1061/(ASCE)1532-3641(2009)9:3(122).
  11. Hossain, M.S., Kim, Y.H. and Gaudin, C. (2014), "Experimental investigation of installation and pull-out of dynamically penetrating anchors in clay and silt", J. Geotech. Geoenviron. Eng., 140(7), 04014026. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001100.
  12. Hossain, M.S., O'Loughlin, C. and Kim, Y.H. (2015), "Dynamic installation and monotonic pullout of a torpedo anchor in calcareous silt", Geotechnique, 65(2), 77-90. https://doi.org/10.1680/geot.13.P.153.
  13. Kim, B.W., Hong, S.Y., Sung, H.G. and Hong, S.W. (2015), "Comparison of simplified model and FEM model in coupled analysis of floating wind turbine", Ocean Syst. Eng., 5(3), 221-243. https://doi.org/10.12989/ose.2015.5.3.221.
  14. Kim, Y.H. and Hossain, M.S. (2015), "Dynamic installation of OMNI-Max anchors in clay: numerical analysis", Geotechnique, 65(12), 1029-1037. https://doi.org/10.1680/jgeot.15.T.008.
  15. Kim, Y.H. and Hossain, M.S. (2016), "Numerical study on pull-out capacity of torpedo anchors in clay", Geotech. Lett., 6(4), 1-8. https://doi.org/10.1680/jgele.16.00106.
  16. Kim, Y.H. and Hossain, M.S. (2017), "Dynamic installation, keying and diving of OMNI-Max anchors in clay", Geotechnique, 67(1), 78-85. http://dx.doi.org/10.1680/jgeot.16.T.008.
  17. Kim, Y.H., Hossain, M.S. and Chang, K. (2018), "Numerical investigation of novel dynamic installed anchors in clay and calcareous silt", Ocean Eng., 163, 29-39. https://doi.org/10.1016/j.oceaneng.2018.05.051.
  18. Kim, Y.H., Hossain, M.S. and Wang, D. (2015b), "Effect of strain rate and strain softening on embedment depth of a torpedo anchor in clay", Ocean Eng., 108, 704-715. https://doi.org/10.1016/j.oceaneng.2015.07.067.
  19. Kim, Y.H., Hossain, M.S., Wang, D. and Randolph, M.F. (2015a), "Numerical investigation of dynamic installation of torpedo anchors in clay", Ocean Eng., 108, 820-832. https://doi.org/10.1016/j.oceaneng.2015.08.033.
  20. Lee, S.Y., Huynh, T.C. and Kim, J.T. (2015), "Structural identification of gravity-type caisson structure via vibration feature analysis", Smart Struct. Syst., 15(2), 259-281. https://doi.org/10.12989/sss.2015.15.2.259.
  21. Lieng, J.T., Tjelta, T.I. and Skaugset, K. (2010), "Installation of two prototype deep penetrating anchors at the Gjoa Field in the North Sea", Proceedings of the Offshore Technology Conference, Houston, Texas, U.S.A., May.
  22. Liu, J., Lu, L. and Hu, Y. (2016), "Keying behavior of gravity installed plate anchor in clay", Ocean Eng., 114, 10-24. https://doi.org/10.1016/j.oceaneng.2016.01.018.
  23. Muduli, P.K., Das, S.K., Samui, P. and Sahoo, R. (2015), "Prediction of uplift capacity of suction caisson in clay using extreme learning machine", Ocean Syst. Eng., 5(1), 41-54. https://doi.org/10.12989/ose.2015.5.1.041.
  24. O'Loughlin, C.D., Richardson, M.D., and Randolph, M.F. (2009), "Centrifuge tests on dynamically installed anchors", Proceedings of 28th International Conference on Ocean, Offshore and Arctic Engineering, Honolulu, Hawaii, U.S.A., June.
  25. O'Loughlin, C.D., Richardson, M.D., Randolph, M.F. and Gaudin, C. (2013), "Penetration of dynamically installed anchors in clay", Geotechnique, 63(11), 909-919. https://doi.org/10.1680/geot.11.P.137.
  26. Richardson, M.D., O'Loughlin, C.D., Randolph, M.F. and Gaudin, C. (2009), "Setup following installation of dynamic anchors in normally consolidated clay", J. Geotech. Geoenviron. Eng., 135(4), 487-496. https://doi.org/10.1061/(ASCE)1090-0241(2009)135:4(487).
  27. Shelton, J.T., Nie, C. and Shuler, D. (2011), "Installation penetration of gravity installed plate anchors-laboratory study results and field history data", Proceeding of the Offshore Technology Conference, Houston, Texas, U.S.A., May.
  28. Tian, Y., Cassidy, M.J. and Gaudin, C. (2014), "The influence of padeye offset on plate anchor re-embedding behavior", Geotech. Lett., 4(1), 39-44. https://doi.org/10.1680/geolett.13.00056.
  29. Zhao, Y. Liu, H. and Li, P. (2016), "An efficient approach to incorporate anchor line effects into the coupled Eulerian-Lagrangian analysis of comprehensive anchor behaviours", Appl. Ocean Res., 59, 201-215. https://doi.org/10.1016/j.apor.2016.06.005.
  30. Zheng, J., Hossain, M.S. and Wang, D. (2015), "New design approach for spudcan penetration in nonuniform clay with an interbedded stiff layer", J. Geotech. Geoenviron. Eng., 141(4), 04015003. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001282.
  31. Zimmerman, E.H., Smith, M.W. and Shelton, J.T. (2009), "Efficient gravity installed anchor for deep water mooring", Proceedings of the Offshore Technology Conference, Houston, Texas, U.S.A., May.

피인용 문헌

  1. Centrifuge modelling of rock-socketed drilled shafts under uplift load vol.24, pp.5, 2019, https://doi.org/10.12989/gae.2021.24.5.431