Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation

Marc Stapelfeldt, Britta Bienen, Jürgen Grabe

Research output: Chapter in Book/Conference paperConference paper

1 Citation (Scopus)

Abstract

In this paper the installation procedure of suction caissons is investigated by means of coupled seepage large deformation analysis performed with finite element methods. The modelling techniques employed to enable simulations of the penetration of a caisson into the soil under offshore conditions, i. e. several tens of meters below the water level. The numerical model includes a u-p-formulation, which is used to calculate the excess pore pressures and effective stresses from the total stresses. The Coupled-Eulerian-Lagrangian (CEL) approach available in conjunction with the Abaqus/Explicit solver is used. The calculation results are compared to centrifuge tests that were carried out recently at the Centre for Offshore Foundation Systems (COFS). This sheds light on the potential and the limitations of the presented numerical techniques. This paper concludes with a brief discussion of alternative numerical approaches that could be capable of the simulation of caisson installation.

Original languageEnglish
Title of host publicationOffshore Geotechnics; Torgeir Moan Honoring Symposium
PublisherASME International
Volume9
ISBN (Electronic)9780791857779
DOIs
Publication statusPublished - 2017
EventASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norway
Duration: 25 Jun 201730 Jun 2017

Conference

ConferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
CountryNorway
CityTrondheim
Period25/06/1730/06/17

Fingerprint

Caissons
Seepage
Pore pressure
Centrifuges
Water levels
Numerical models
Soils
Finite element method

Cite this

Stapelfeldt, M., Bienen, B., & Grabe, J. (2017). Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation. In Offshore Geotechnics; Torgeir Moan Honoring Symposium (Vol. 9). [OMAE2017-61378] ASME International. https://doi.org/10.1115/OMAE2017-61378
Stapelfeldt, Marc ; Bienen, Britta ; Grabe, Jürgen. / Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation. Offshore Geotechnics; Torgeir Moan Honoring Symposium. Vol. 9 ASME International, 2017.
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abstract = "In this paper the installation procedure of suction caissons is investigated by means of coupled seepage large deformation analysis performed with finite element methods. The modelling techniques employed to enable simulations of the penetration of a caisson into the soil under offshore conditions, i. e. several tens of meters below the water level. The numerical model includes a u-p-formulation, which is used to calculate the excess pore pressures and effective stresses from the total stresses. The Coupled-Eulerian-Lagrangian (CEL) approach available in conjunction with the Abaqus/Explicit solver is used. The calculation results are compared to centrifuge tests that were carried out recently at the Centre for Offshore Foundation Systems (COFS). This sheds light on the potential and the limitations of the presented numerical techniques. This paper concludes with a brief discussion of alternative numerical approaches that could be capable of the simulation of caisson installation.",
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Stapelfeldt, M, Bienen, B & Grabe, J 2017, Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation. in Offshore Geotechnics; Torgeir Moan Honoring Symposium. vol. 9, OMAE2017-61378, ASME International, ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017, Trondheim, Norway, 25/06/17. https://doi.org/10.1115/OMAE2017-61378

Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation. / Stapelfeldt, Marc; Bienen, Britta; Grabe, Jürgen.

Offshore Geotechnics; Torgeir Moan Honoring Symposium. Vol. 9 ASME International, 2017. OMAE2017-61378.

Research output: Chapter in Book/Conference paperConference paper

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AB - In this paper the installation procedure of suction caissons is investigated by means of coupled seepage large deformation analysis performed with finite element methods. The modelling techniques employed to enable simulations of the penetration of a caisson into the soil under offshore conditions, i. e. several tens of meters below the water level. The numerical model includes a u-p-formulation, which is used to calculate the excess pore pressures and effective stresses from the total stresses. The Coupled-Eulerian-Lagrangian (CEL) approach available in conjunction with the Abaqus/Explicit solver is used. The calculation results are compared to centrifuge tests that were carried out recently at the Centre for Offshore Foundation Systems (COFS). This sheds light on the potential and the limitations of the presented numerical techniques. This paper concludes with a brief discussion of alternative numerical approaches that could be capable of the simulation of caisson installation.

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Stapelfeldt M, Bienen B, Grabe J. Advanced approaches for coupled deformation-seepage-analyses of suction caisson installation. In Offshore Geotechnics; Torgeir Moan Honoring Symposium. Vol. 9. ASME International. 2017. OMAE2017-61378 https://doi.org/10.1115/OMAE2017-61378