An Experimental Investigation of a Shallow Skirted Foundation Under Compression and Tension

Acosta-Martinez, Hugo; Gourvenec, Susan; Randolph, Mark

doi:10.3208/sandf.48.247

Cited by 34 publications

(18 citation statements)

References 6 publications

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“…15 indicates the comparison results of fitted curves of depth factor in this study with other studies [14,[25][26][27]. The results from finite element analyses proposed a quadratic relationship between ultimate vertical capacity and embedment ratio, for L/D≤1 [11,25]. Hansen (1970) suggested a liner relationship for L/D≤1 and an arctangent relationship for L/D>1 [14].…”

Section: Discussionsupporting

confidence: 58%

“…There are a number of centrifuge tests for investigating the difference of skirted foundations (L/D≤1) under the condition of compression and uplift. Watson et al and Mana et al reported the same magnitudes of undrained uplift capacity and compression capacity, while Acosta-Martinez et al observed 30% reduction in uplift capacity compared to compression capacity [9][10][11]. The magnitude of passive suction is the key factor to mobilize the reverse capacity.…”

Section: Introductionmentioning

confidence: 91%

“…Fig. 5 presented the statistic datas from a range of centrifuge tests [10,11,15,16] and 1g tests [17][18][19][20]. The ultimate displacements are not more than 0.1D and 0.2D when the embedment ratios less than 1 and 2.…”

Section: Fig 4 Normalised Load-displacement Curve According To L/d Rmentioning

confidence: 99%

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Numerical Investigation of the Undrained Compression and Pull-Out Capacity of Suction Foundations in Clay

Shen

et al. 2015

Polish Maritime Research

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Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 91%

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Numerical Investigation of the Undrained Compression and Pull-Out Capacity of Suction Foundations in Clay

Shen

et al. 2015

Polish Maritime Research

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“…Puech et al 1993;Watson et al 2000;Watson and Randolph 2006;Acosta-Martinez et al 2008;Gourvenec et al 2009;Mana et al 2012a, b). The potential for improved uplift resistance of skirted foundations due to suction is evident and is acknowledged by current shallow foundation design recommendations (e.g.…”

Section: Offshore Loading Conditions and Reverse End Bearingmentioning

confidence: 99%

“…Some studies (Watson et al 2000;Mana et al 2012a, b) reported equal magnitudes of ultimate net undrained bearing capacities in compression and uplift whereas others (Clukey and Morrison 1993;Acosta-Martinez et al 2008) observed up to 30 % reduction in uplift capacity An experimental investigation of Mana/Gourvenec/Randolph reverse end bearing of offshore shallow foundations 5 compared to compression capacity. Theoretically, the peak uplift and compression capacities should be equal if full reverse end bearing is mobilised.…”

Section: Offshore Loading Conditions and Reverse End Bearingmentioning

confidence: 99%

Experimental investigation of reverse end bearing of offshore shallow foundations

2013

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An experimental investigation of Mana/Gourvenec/Randolph reverse end bearing of offshore shallow foundations 2 ABSTRACT Shallow skirted foundations can mobilise uplift resistance from end bearing in the short to medium term. However, uncertainty exists over the magnitude of reverse end bearing resistance compared with resistance in compression, and how this might be affected by a gap between the external face of the foundation skirt and the adjacent soil. The study presented in this paper explored the problem through centrifuge model tests, investigating the effect of skirt embedment ratio on (i) the magnitude of reverse end bearing capacity compared to compression capacity (ii) the uplift displacement associated with spontaneous loss of suction during uplift, and (iii) the effect of a vertical gap on the external skirt-soil interface.The results show that (i) peak uplift capacity equivalent to compression capacity can be mobilised for a fully sealed foundation with an intact skirt-soil interface,(ii) suction required for reverse end bearing can be maintained through considerable foundation displacement, even for low skirt embedment ratio, and (iii) the presence of a vertical gap along the external skirt-soil interface causes abrupt loss of suction beneath the top plate after minimal foundation displacement, with subsequent uplift capacity being markedly reduced.

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Uplift Performance of Suction Foundations in Sandy Soils for Offshore Platforms

Xu,

Wu,

Luo

et al. 2023

Geotech Geol Eng

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An Experimental Investigation of a Shallow Skirted Foundation Under Compression and Tension

Cited by 34 publications

References 6 publications

Numerical Investigation of the Undrained Compression and Pull-Out Capacity of Suction Foundations in Clay

Numerical Investigation of the Undrained Compression and Pull-Out Capacity of Suction Foundations in Clay

Experimental investigation of reverse end bearing of offshore shallow foundations

Uplift Performance of Suction Foundations in Sandy Soils for Offshore Platforms

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