On the Bearing Capacity of Surface Footings on Sand Under General Planar Loads

Gottardi, Guido; Butterfield, R.

doi:10.3208/sandf1972.33.3_68

Cited by 124 publications

(47 citation statements)

References 9 publications

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“…Figure 4(a) sketches the projection of the interaction diagram in the scaled frame (n, t). Although the trends appear to be very similar with a maximal value for the tangential load E 1g-scaled model tests: the formulations derived from References [3,29,30] are almost identical. It should be emphasized that, except some tests performed by Nova and Montrasio [3], they deal with dense sands.…”

Section: Interaction Diagrammentioning

confidence: 73%

“…The e!ective pressure under the footing is indeed much higher with 1g-scaled models than with full scale (or even centrifuged) footings. Reference [41] con"rm from theoretical results that the introduction of friction angle depending on the e!ective pressure increases the value of the maximal admissible tangential load. Conversely, the lowest value is obtained with a constant friction angle.…”

Section: Interaction Diagrammentioning

confidence: 81%

“…Thus, an alternative approach consists in using experimental data provided by reduced model-tests in order to plot the failure load combinations. Numerous sets of high-quality mode-1g-test data were provided by [3,29,30]. Various empirical curve "ts have been suggested for the shape of the yield locus.…”

Section: Interaction Diagrammentioning

confidence: 99%

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Application of thermodynamics to the global modelling of shallow foundations on frictional material

Pape¹,

Sieffert²

2001

Num Anal Meth Geomechanics

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SUMMARYSoil}shallow foundation interaction has been theoretically analysed within the framework of thermomechanics. The design of a global interaction model has been achieved with an original treatment of the Clausius}Duhem inequality. The role of the gravity volume forces is emphasized. The paper is focused on a strip footing based on dense sand and subjected to time-independent plastic processes. The theoretical approach has con"rmed that an associated global #ow rule cannot be expected to hold true. The analysis of the sources of dissipation has led to the development of a soil}footing interface model and a complete interaction model accounting for the interface constraints and the intrinsic frictional properties of the soil. Finally, the abilities of the complete model are checked by comparisons with experimental results found in the literature.

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Section: Interaction Diagrammentioning

confidence: 73%

Section: Interaction Diagrammentioning

confidence: 81%

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Application of thermodynamics to the global modelling of shallow foundations on frictional material

Pape¹,

Sieffert²

2001

Num Anal Meth Geomechanics

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“…Evaluating the load combinations required to induce yielding has been the subject of various studies focused on the bearing capacity of shallow foundations, many of which are summarised in the works of Gottardi and Butterfield (1993), Taiebat and Carter (2000) and Shen et al (2016). For undrained conditions and the case of a horizontal surface foundation resting on horizontal stratum of soil, Gourvenec (2007) proposed the following convenient expression for the yield envelope: …”

Section: Yield Envelopes For Shallow Foundationsmentioning

confidence: 99%

Predicting wheel forces using bearing capacity theory for general planar loads

Stanier

Hambleton

2017

IJVP

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This paper assesses the applicability of bearing capacity theory for evaluating the forces generated on wheels operating on clay under steady rolling conditions. Considering advances in bearing capacity theory, in particular the interaction diagrams developed for general loading, a theoretical model for computing the horizontal force or torque from fundamental input parameters such as the vertical force (weight), wheel diameter, and undrained shear strength of the soil is presented. The predictions are compared with existing analytical solutions and data from laboratory testing, and reasonable agreement is demonstrated. The newly proposed model provides a means to predict wheel forces analytically under any operating condition (driven, braked, or towed), provided the contact length and so-called contact angle, which defines the position of the contact interface, can be estimated. The model provides a rigorous, convenient framework for evaluating wheel forces under arbitrary loading and enables a natural physical interpretation of the mobility problem.Keywords: soil-wheel interaction; mobility; bearing capacity; interaction diagrams; yield envelopes; clay.Reference to this paper should be made as follows: Hambleton, J.P. and Stanier, S.A. (2017) 'Predicting wheel forces using bearing capacity theory for general planar loads ', Int. J. Vehicle Performance, Vol. 3, No. 1, 72 J.P. Hambleton and S.A. StanierBiographical notes: J.P. Hambleton received his Bachelor's, Master's, and Doctoral degrees in Civil Engineering from the University of Minnesota. After completing his PhD in 2010, he worked at The University of Newcastle, Australia, first as a Post-Doctoral Research Associate and then as a Senior Lecturer in the ARC Centre of Excellence for Geotechnical Science and Engineering (CGSE). In 2016, he joined the Department of Civil and Environmental Engineering at Northwestern University as an Assistant Professor. His main research interests are in computational plasticity, geotechnical analysis, contact mechanics, soil-machine interaction, and the analysis of problems involving unsteady plastic flow.Sam A. Stanier obtained a PhD in Geotechnical Engineering from the University of Sheffield in the UK in 2011 with a thesis focused on using transparent soils to model the failure mechanisms of helical screw piles. Since then he has held various research roles at the Centre for Offshore Foundation Systems at UWA, working on projects exploring spudcan punch-through, developing image-based deformation measurement techniques and measuring pipe-soil interaction parameters using shallow penetrometers. He is currently a Research Fellow working on geotechnical aspects of the scope of the ARC Industrial Transformation Research Hub for Offshore Floating Facilities.

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“…The advantages of failure envelopes are thoroughly discussed in the literature (Gottardi & Butterfield, 1993;Houlsby & Cassidy, 2002;Gourvenec & Randolph, 2003;Gourvenec & Barnett, 2011). The failure envelope approach is generally less conservative than classical bearing capacity equations, such as Meyerhof (1951), Meyerhof (1953), Brinch Hansen (1961) and Brinch Hansen (1970.…”

Section: Introductionmentioning

confidence: 99%

A numerical study of capacity and stiffness of circular skirted foundations in clay subjected to combined static and cyclic general loading

2018

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Skirted foundations have been widely applied as offshore foundations for several decades. In design, the use of failure envelopes is convenient for assessing stability under combined loading. A large number of studies on failure envelopes exist in the literature based on experiments and numerical analyses. Most of these studies focus on ultimate capacity and static loading. This paper presents a numerical study focusing on cyclic degradation and failure envelopes for skirted foundations subjected to combined cyclic and static loading. It was found that the shapes of the failure envelopes are little affected by degradation expressed by the number of equivalent cycles. In addition to failure envelopes, contours of displacements were computed in the three-dimensional load space (vertical, horizontal and moment load) for a more complete description of the response. As an example, the well-defined cyclic contour diagrams of Drammen clay were utilised to demonstrate how foundation response diagrams can be established. The database is accompanied by a simplified procedure to account for cyclic degradation through equivalent number of cycles, different normalised load-displacement response and variation in foundation geometry. The framework of procedures can be used to estimate foundation stiffness and capacity and the results can serve as a basis for the development of foundation macro-element models.

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On the Bearing Capacity of Surface Footings on Sand Under General Planar Loads

Cited by 124 publications

References 9 publications

Application of thermodynamics to the global modelling of shallow foundations on frictional material

Application of thermodynamics to the global modelling of shallow foundations on frictional material

Predicting wheel forces using bearing capacity theory for general planar loads

A numerical study of capacity and stiffness of circular skirted foundations in clay subjected to combined static and cyclic general loading

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