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Axisymmetric transient modelling of a suction caisson in sand

Axisymmetric transient modelling of a suction caisson in sand
Axisymmetric transient modelling of a suction caisson in sand
This paper deals with the axisymmetric behaviour of a suction caisson installed in sand upon vertical monotonic and cyclic loading. A steel caisson is numerically modelled using the finite element code LAGAMINE. The Prevost model reproduces the cyclic behaviour of the soil, i.e. it captures the accumulation of deformation and pore water pressure within the soil. Coupled interface finite elements allow the modelling of the uplift behaviour of the caisson in both drained and partially drained conditions. Upon compression or traction loading, the suction caisson presents different modes of resistance: friction along the shaft, bearing capacity under the lid or the tip of the caisson, suction effect. The first part of this work describes the progressive mobilisation of these modes of resistance during monotonic simulations. The partially drained effect is particularly interesting since it drastically increases the resistance to transient loading. It proceeds from the transient consolidation process induced by the caissons loading. The second part describes the evolution of the settlement of the suction caisson upon different kind of cyclic loading signals.
Suction caisson, Sand, Cyclic loading
CRC Press
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Collin, Frédéric
27fa6a2d-f8e2-473f-a3b2-070eca6a9c3a
Charlier, Robert
3bba8221-b05d-431a-8a41-40f1b5dcc7e8
Wuttke, Frank
Sanchez, Marcelo
Bauer, Sebastian
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Collin, Frédéric
27fa6a2d-f8e2-473f-a3b2-070eca6a9c3a
Charlier, Robert
3bba8221-b05d-431a-8a41-40f1b5dcc7e8
Wuttke, Frank
Sanchez, Marcelo
Bauer, Sebastian

Cerfontaine, Benjamin, Collin, Frédéric and Charlier, Robert (2016) Axisymmetric transient modelling of a suction caisson in sand. Wuttke, Frank, Sanchez, Marcelo and Bauer, Sebastian (eds.) In Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotechnics, ICEGT 2016, Kiel, Germany, 29-31 August 2016. CRC Press. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper deals with the axisymmetric behaviour of a suction caisson installed in sand upon vertical monotonic and cyclic loading. A steel caisson is numerically modelled using the finite element code LAGAMINE. The Prevost model reproduces the cyclic behaviour of the soil, i.e. it captures the accumulation of deformation and pore water pressure within the soil. Coupled interface finite elements allow the modelling of the uplift behaviour of the caisson in both drained and partially drained conditions. Upon compression or traction loading, the suction caisson presents different modes of resistance: friction along the shaft, bearing capacity under the lid or the tip of the caisson, suction effect. The first part of this work describes the progressive mobilisation of these modes of resistance during monotonic simulations. The partially drained effect is particularly interesting since it drastically increases the resistance to transient loading. It proceeds from the transient consolidation process induced by the caissons loading. The second part describes the evolution of the settlement of the suction caisson upon different kind of cyclic loading signals.

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More information

Published date: 8 August 2016
Additional Information: © 2017 CRC Press, Taylor & Francis Group, an Informa Group company.
Keywords: Suction caisson, Sand, Cyclic loading

Identifiers

Local EPrints ID: 444222
URI: http://eprints.soton.ac.uk/id/eprint/444222
PURE UUID: f1f928da-b1cc-465c-9e1e-1e22e9c8ad19
ORCID for Benjamin Cerfontaine: ORCID iD orcid.org/0000-0002-4833-9412

Catalogue record

Date deposited: 01 Oct 2020 16:34
Last modified: 02 Oct 2020 01:53

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Contributors

Author: Frédéric Collin
Author: Robert Charlier
Editor: Frank Wuttke
Editor: Marcelo Sanchez
Editor: Sebastian Bauer

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