Analytical Parametric Study on Horizontal Loading Capacity of Suction Piles

Burg, Elizabeth C; Bang, S.

doi:10.1109/oceans.2005.1639739

Cited by 2 publications

(1 citation statement)

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“…In contemporary research, extensive field studies have been conducted on the bearing capacity of suction caissons, their loading points, and soil characteristics, as documented by scholars such as Andersen et al [6], Dyvik et al [7], and Ravichandran et al [8]. Parallel to these discussions, Burg and Bang [9] highlighted factors affecting the horizontal loading capacity of suction caissons, including the point of horizontal load application, flange and pile diameters, seafloor soil strength, pile diameter-to-length ratio, and properties of layered soils. Apart from field tests, laboratory experiments, particularly centrifuge tests and 1 g model tests, have played a crucial role in gaining a deeper understanding of the mechanical behavior of suction anchors [10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Composite Load-Induced Seabed Response around a Suction Anchor

Ma,

Zhao,

Jeng

2024

JMSE

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Suction anchors play a crucial role as marine supporting infrastructure within mooring systems. In engineering practice, the composite load comprising nonlinear waves and cyclic pull-out loads can have adverse effects on the seabed soil, posing a threat to the pull-out bearing capacity of the suction anchor. While existing research predominantly focuses on cyclic pull-out loads, the influence of nonlinear wave actions at the seabed surface remains overlooked. This study employs a two-dimensional integrated numerical model to investigate the dynamic soil response around a suction anchor under the influence of both nonlinear waves and cyclic pull-out loads, focusing on the mechanisms that lead to liquefaction and the deterioration of the interfacial friction due to the excess pore pressure buildup. The numerical results reveal that the cyclic pull-out load is the primary factor in the deterioration of the frictional resistance at the suction–soil interface, especially when the pull-out load is inclined with the suction anchor. Parametric studies indicate that the relative difference in frictional resistance deterioration between cases considering and excluding surface water waves becomes more pronounced in soils characterized by a small consolidation coefficient (Cv) and relative density (Dr).

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