Evaluation of Influencing Factors on the Pull-out Behavior of Suction Caissons

Subject Areas : Structural Engineering

Adel  Asakereh ¹ (Civil engineering department, Faculty of engineering, University of Hormozgan)
Abdol Hamid  Kamali ² (Graduate Student, Civil Engineering Department, University of Hormozgan, Bandar Abbas, Iran)

Received: 2017-03-23 Accepted : 2017-08-18 Published : 2018-03-01

Keywords: clay, Caisson, Pull-Out Capacity, Drain condition, offshore structures,

Abstract :

Suction caisson is a type of floor foundation for the offshore structures that is also called suction pile, bucket foundation, suction anchor, or sometimes ridge foundation depending on its application. In two past decades, this type of foundation has been widely used around the world as the fixed offshore foundation, anchor of the floating platforms, as well as the foundation of other marine structures such as the offshore wind turbines. Suction caisson is a metal (or sometimes concrete) hollow cylinder that is open from its bellow while it is top is being closed by flat or dome plates. This type of caisson is called suction caisson mainly because its installation is done by suctioning their water outside after drainage. In this research, numerically study the effective factors on the pullout behavior of the suction caissons. The analyses conducted in two-dimensional form on the drainage condition on clay soil. The results of the analysis show that the strength parameters of the soil are significantly effective on the pullout capacity of the suction caisson.

References:

 

[1]     Zeinoddini, M.&Nabipour, M. A Parametric Study on the Pullout response of Suction Caissons. Journal of Marine Engineering, Vol. 0, No. 5, pp. 1/E-16/E, 2009.

[2]     Goodman, L. J.; Lee, C. N. & Walker, F. J.  The Feasibility of Vacuum Anchorage in Soil. Geotechnique, 1, pp. 356- 359, 1961.

[3]     Brown, G. A.; Nacci, V. A. and Demars, K. R. Performance of hydrostatic anchors in granular soils. Offshore Technology Conference, Huston, Texas, OTC 1472, 1971.

[4]     Wang, M. C.; Nacci, V. A. and Demars, K. R.  Behavior of underwater suction anchor in soil. Ocean Engineering. Vol. 3, No. 1. pp. 47-62. Pergamon Press Ltd., London, 1975.

[5]     Helfrich, S.C., Brazill, R.L., and Richards, A.F. Pullout characteristics of a suction anchor in sand. Proceedings of the 8th annual Offshore Technology Conference, Houston, Texas, OTC 2469, May 3-6, pp. 501-506, 1976.

[6]     Brown, G. A.; Nacci, V. A. and Demars, K. R.  Performance of hydrostatic anchors in granular soils. Offshore Technology Conference, Huston, Texas, OTC 1472, 1971.

[7]     Hogervorst, J.R.Field trials with large diameter suction piles. Proceedings of the 12th annual Offshore Technology Conference, Houston, Texas, OTC 3817, May 5-8, pp. 217-224, 1980.

[8]     Dayong, L., Yukun, Z., Lingyun, F. and Yufeng, G. Capacity of modified suction caissons in marine sand under static horizontal loading. Ocean Engineering, 102, pp. 1-16, 2015.

[9]     Ukritchon, B. and  Keawsawasvong, S. Undrained pullout capacity of cylindrical suction caissons by finiteelement limit analysis. Computers and Geotechnics, 80, pp. 301-311, 2016.

[10] Charlton, T.S. and Rouainia, M. Probabilistic capacity analysis of suction caissons in spatially variable clay. Computers and Geotechnics, 80, pp. 226-236, 2016.

[11] Bagheri, P., Son, S.W. and Kim, J.M. Investigation of the load-bearing capacity of suction caissons used for offshore wind turbines. Applied Ocean Research, 67, pp. 148-161, 2017.

[12] Deng, W., Carter, J. P. and Taiebat, H. Prediction of the Lateral Capacity of Suction Caissons. Proceedings, 10th International Conference of the International Association for Computer Methods and Advances in Geomechanics; Rotterdam: Balkema. 1, pp. 33-38, 2001.

[13] Rao, S. N.; Ravi, R.; Prasad, B. S.Pullout behavior of suction anchors in soft marine clays. Marine Georesources and Geotechnology, Vol. 15, pp. 95-114, 1997.

[14] El-Gharbawy, S.L., and Olson, R.E.Modeling of suction caisson foundations. Proceedings of the International Offshore and Polar Engineering Conference, Vol. 2, pp. 670- 677, 2000.

[15] Iskander, M. El-Gharbawy, S. and Olson, R. Performance of suction caissons in sand and clay. Canadian Geotechnical Journal, 39, pp. 576-584, 2002.

[16] El-Gharbawy, S. and Olson, R.The pullout capacity of suction caissons for tension leg platforms. Proceedings of 8th International Offshore and Polar Engineering Conference, Montrea., 1998.

[17] Jun Huang, A., Jianchun Cao and Jean M. E. Audibert, M. Geotechnical Design Of Suction Caisson In Clay. Proceedings of The Thirteenth International Offshore and Polar Engineering Conference Honolulu, Hawaii, USA, May 25–30, 2003.