Abstract
Multiaxial strength envelopes have been recently proposed as a rational approach for the design of pile foundations subjected to inclined and eccentric loads, leading to more economical solutions with respect to standard methods applied in the design practice. Theoretical solutions based on the application of the Upper-Bound (UB) and Lower-Bound (LB) theorem of Limit Analysis have been proposed to derive the ultimate failure domain of pile groups. In this paper, theoretical predictions for a 4 × 1 pile group embedded in a homogeneous clayey soil deposit are validated against the results of numerical analyses carried out with the Finite Element code Abaqus. To take into account the nonlinear behaviour of reinforced concrete piles, a damaged plasticity model was used for the concrete, while the reinforcing bars were modelled as equivalent elastoplastic shell elements. The soil was modelled as a standard elastic-perfectly plastic material with a Tresca failure criterion to represent the undrained soil behaviour in a total stress analysis.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Gerolymos, N., Papakyriakopoulos, O.: Macroelement Modelling of Laterally Loaded Piles and Pile-groups (2016)
Psychari, A., Anastasopoulos, I.: Combined loading of RC pile groups in clay accounting for N-M interaction. Soil Dyn. Earthq. Eng. 163, 107490 (2022)
Sakellariadis, L., Anastasopoulos, I.: On the mechanisms governing the response of pile groups under combined VHM loading. Géotechnique 1–22 (2022)
De Sanctis, L., Di Laora, R., Garala, T.K., Madabhushi, S.P.G., Viggiani, G.M.B., Fargnoli, P.: Centrifuge modelling of the behaviour of pile groups under vertical eccentric load. Soils Found. 61(2), 465–479 (2021)
Di Laora, R., de Sanctis, L., Aversa, S.: Bearing capacity of pile groups under vertical eccentric load. Acta Geotech. 14(1), 193–205 (2018). https://doi.org/10.1007/s11440-018-0646-5
ABAQUS, Inc.. ABAQUS 2019 User’s Manual. Dassault Systèmes Simulia Corp (2019)
Viggiani, C.: Fondazioni. Helvelius Edizioni (1999)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Potini, F., Conti, R. (2023). A Comparison Between Theoretical and Numerical Ultimate Failure Domains for Pile Groups. In: Ferrari, A., Rosone, M., Ziccarelli, M., Gottardi, G. (eds) Geotechnical Engineering in the Digital and Technological Innovation Era. CNRIG 2023. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-031-34761-0_57
Download citation
DOI: https://doi.org/10.1007/978-3-031-34761-0_57
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-34760-3
Online ISBN: 978-3-031-34761-0
eBook Packages: EngineeringEngineering (R0)