DOI QR코드

DOI QR Code

Numerical analysis of suction pile behavior with different loading locations and displacement inclinations

  • Kim, Dongwook (Goetechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Lee, Juhyung (Goetechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Nsabimana, Ernest (Department of Civil Engineering, Kyung Hee University) ;
  • Jung, Young-Hoon (Department of Civil Engineering, Kyung Hee University)
  • Received : 2011.08.24
  • Accepted : 2012.08.06
  • Published : 2012.09.25

Abstract

Recently, interest of offshore structure construction in South Korea is growing as the land space becomes limited for further development and the renewable energy grows to be more attractive for the replacement of the fossil energy. In order for the optimal construction of optimum offshore floating structures, development of safe and economical offshore foundation technologies is a priority. In this study, the large-deformation behavior of a suction pile, which markets are rapidly growing nowadays, is analyzed for three different loading locations (top, middle, and bottom of the suction pile) with three different displacement inclinations (displacement controlled with displacement inclinations of 0, 10, and 20 degrees from the horizontal). The behavior analysis includes quantifications of maximum resistances, translations, and rotation angles of the suction pile. The suction pile with its diameter of 10 m and height of 25 m is assumed to be embedded in clay, sand, and multi layers of subsea foundation. The soil properties of the clay, sand, and multi layers were determined based on the results of the site investigations performed in the West sea of South Korea. As analyses results, the maximum resistance was observed at the middle of the suction pile with the displacement inclination of 20 degrees, while the translations and rotations resulting from the horizontal and inclined pullouts were not significant until the horizontal components of movements at the loading points reach 1.0 m.

Keywords

References

  1. H.K.S. (1997), ABAQUS 5.2 User's manual, Hibbitt, Kartsson & Sorensen Inc.
  2. Bang, S. and Cho, Y. (2000), Use of suction piles for mooring of mobile offshore bases- task 3. Analysis and design methods of suction piles, Report prepared for the Naval Facilities Engineering Service Center.
  3. Bang, S. and Cho, Y. (2001), "Ultimate horizontal loading capacity of suction piles", Proceedings of the 11th International Offshore and Polar Engineering Conference, Stavanger, Norway.
  4. Bang, S., Jones, K.D., Kim, K.O., Kim, Y.S. and Cho, Y. (2011), "Inclined loading capacity of suction piles in sand", Ocean Eng., 38(7), 915-924. https://doi.org/10.1016/j.oceaneng.2010.10.019
  5. Bransby, M.F. and Randolph, M.F. (1999), "The effect of skirted foundation shape on response to combined VM-H loading", Int. J. Offshore Polar, 9(3).
  6. Chen, W. and Randolph, M.F. (2007), "Uplift capacity of suction caissons under sustained and cyclic loading in soft clay", J. Geotech. Geoenviron., 133(11), 1352-1363. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:11(1352)
  7. Cho, Y. and Bang, S. (2002), "Inclined loading capacity of suction piles", Proceedings of 12th International Offshore and Polar Engineering Conference, Kitakyushu, Japan.
  8. Clukey, E.C., Aubeny, C.P. and Murff, J.D. (2003), "Comparison of analytical and centrifuge model tests for suction caisson subjected to combined loads", Proceedings of the 22nd International Conference on Offshore Mechanics and Arctic Engineering, Cancun, Mexico.
  9. Hogervorst, J.R. (1980), "Field trails with large diameter suction piles", Proceedings of the 12th annual Offshore Technology Conference, Houston, Texas.
  10. Larsen, P. (1989), "Suction anchors as an anchoring system for floating offshore constructions", Proceedings of the 21st annual Offshore Technology Conference, Houston, Texas.
  11. Lee, J.H., Kim, D., Chung, M.K., Kwak, K.S. and Jung, Y.H. (2011), "Numerical analysis of the suction pile behavior with different lateral loading locations", J. Korean Geotech. Soc., 27(4), 67-76, in Korean. https://doi.org/10.7843/kgs.2011.27.4.067
  12. Maniar, D.R. (2004), A computational procedure for simulation of suction caisson behavior under axial and inclined loads, Ph.D. thesis, University of Texas at Austin.
  13. Sukumaran, B. (1998), "Suction caisson foundations - A better option for deep water applications", Proceedings of the SWE Annual Conference, Houston, TX.
  14. Shabana, A.A. (2010), Computational continuum mechanics, Cambridge University Press, New York.
  15. Zhang, J.H., Zhang, L.M. and Lu, X.B. (2007), "Centrifuge modeling of suction bucket foundations for platforms under ice-sheet-induced cyclic lateral loadings", Ocean Eng., 34(8-9), 1069-1079. https://doi.org/10.1016/j.oceaneng.2006.08.009