Pullout Capacity of Horizontally Loaded Suction Anchor Installed in Silty Sand

Current floating structures require more reliable and higher anchoring capacities because of their increased size. A suction anchor is one of the most popular anchors for a floating system. In this study, the behavior of a suction anchor installed in cohesionless soil was investigated when the anchor was subjected to mainly a horizontal load. Three-dimensional finite element numerical analyses were carried out using ABAQUS, and three centrifuge tests were performed to calibrate the numerical analyses. A parametric study with different dimensions and loading points for the suction anchor was conducted. The horizontal capacity of the suction anchor was estimated, and the soil reaction distribution was analyzed when the load was applied at the optimal point. Based on the results, an analytical equation for calculating the horizontal capacity of a suction anchor was proposed that can be easily adopted for design.

[1]  S. Bang,et al.  Inclined loading capacity of suction piles in sand , 2011 .

[2]  Charles Aubeny,et al.  Simplified Limit Solutions for Undrained Capacity of Suction Anchors , 2003 .

[3]  C. Aubeny,et al.  Lateral Undrained Resistance of Suction Caisson Anchors , 2001 .

[4]  P. Sparrevik,et al.  Suction Pile Technology and Installation in Deep Waters , 2002 .

[5]  Yun Wook Choo,et al.  Behavior of Suction Anchor For Horizontal Load From Catenary Line In Cohesionless Soils , 2012 .

[6]  T. R. Chari,et al.  Lateral capacity of model rigid piles in cohesionless soils. , 1999 .

[7]  J. H. Atkinson,et al.  Non-linear soil stiffness in routine design , 2000 .

[8]  M. Randolph,et al.  Analysis of Suction Caisson Capacity in Clay , 2002 .

[9]  Hans Petter Jostad,et al.  Shear Strength Along Inside of Suction Anchor Skirt Wall in Clay , 2004 .

[10]  G. G. Meyerhof,et al.  LATERAL RESISTANCE AND DEFLECTION OF RIGID WALLS AND PILES IN LAYERED SOILS , 1981 .

[11]  Bengt B. Broms,et al.  LATERAL RESISTANCE OF PILE IN COHESIONLESS SOILS , 1964 .

[12]  Centrifuge Testing on Suction Anchors: Double-Wall, Over-Consolidated Clay, and Layered Soil Profile , 2006 .

[13]  Bengt B. Broms,et al.  Closure of "Lateral Resistance of Piles in Cohesionless Soils" , 1965 .

[14]  S. Bang,et al.  Inclined Loading Capacity of Suction Piles , 2002 .

[15]  S. Bang,et al.  Ultimate Horizontal Loading Capacity of Suction Piles , 2002 .

[16]  Young-Seok Cho,et al.  Horizontal Bearing Capacity of Suction Piles in Sand , 2006 .

[17]  Hans Petter Jostad,et al.  Foundation design of skirted foundations and anchors in clay , 1999 .