Probabilistic bearing capacity of spudcan foundations under combined loading in spatially variable soils

Wu, Yongxin; Zhang, Houle; Shu, Shuang

doi:10.1016/j.oceaneng.2022.110738

Cited by 8 publications

(1 citation statement)

References 29 publications

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“…Failure envelopes for different types of foundations (e.g. strip (Bransby and Randolph, 1998; Fathipour et al, 2022), rectangular (Gourvenec and Randolph, 2003) and circular (Suryasentana et al, 2021) foundations), homogeneous (Taiebat and Carter, 2010) or non-homogeneous (He and Newson, 2022b; Wu et al, 2022) soils, and zero-tension (Shen et al, 2016) or unlimited-tension (Gourvenec and Randolph, 2003) interface conditions have been previously investigated under undrained soil conditions. These studies have been primarily confined to a single layer soil with a uniform or linearly increasing soil undrained shear strength profile.…”

Section: Introductionmentioning

confidence: 99%

Undrained capacity of circular shallow foundations on two-layer clays under combined VHMT loading

Newson

2023

Wind Engineering

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Wind turbines are typically designed based on fatigue and serviceability limit states, but still require an accurate assessment of bearing capacity. Overconsolidated clay deposits in Canada often have a thin layer of crust with a relatively high undrained shear strength. However, existing bearing capacity design methods do not consider surficial crusts. This paper studies the undrained VHMT (vertical, horizontal, moment, and torsional) failure envelope of circular foundations founded on a surficial crust underlain by a uniform soil using finite element analysis. Crust correction factors have been introduced to account for the effects of the stiff layer on the vertical and moment capacities. The same forms of equation that are used for uniform soils, but with different parameters provide satisfactory fits for the failure envelopes for a soil with a crustal layer. An analytical expression for the 4-D VHMT failure envelope is derived, and an application of this method is provided.

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