Finite element modelling of the uplift behaviour of screw piles in sand

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

In this paper a simplified procedure to incorporate some installations effects into the numerical finite element modelling of screw pile uplift is presented. The procedure consists of the approximation of the installation phase through 1) the application of a compression loading corresponding to successive embedment depths, 2) the use of modified soil properties over a disturbed zone. Pre-defined failure mechanisms are added to introduce some weakened zones due to either soil disturbance or strain-localisation. The results of numerical simulations are compared to a centrifuge test undertaken at the University of Dundee. The simulation considering an inclined failure mechanism and the simulated installation better captures the uplift capacity and initial stiffness.
Original languageEnglish
Title of host publicationProceedings of the 1st International Symposium on Screw Piles for Energy Applications
Pages69-75
DOIs
Publication statusPublished - 27 May 2019
Event1st International Symposium on Screw Piles for Energy Applications - University of Dundee, Dundee, United Kingdom
Duration: 27 May 201928 May 2019

Conference

Conference1st International Symposium on Screw Piles for Energy Applications
Abbreviated titleISSPEA
CountryUnited Kingdom
CityDundee
Period27/05/1928/05/19

Fingerprint

Piles
Sand
Soils
Centrifuges
Stiffness
Computer simulation

Keywords

  • Screw piles
  • finite element analysis
  • UPLIFT
  • Sand

Cite this

Cerfontaine, B., Brown, M., Knappett, J., & Davidson, C. (2019). Finite element modelling of the uplift behaviour of screw piles in sand. In Proceedings of the 1st International Symposium on Screw Piles for Energy Applications (pp. 69-75) https://doi.org/10.20933/100001123
Cerfontaine, Benjamin ; Brown, Michael ; Knappett, Jonathan ; Davidson, Craig. / Finite element modelling of the uplift behaviour of screw piles in sand. Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. 2019. pp. 69-75
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abstract = "In this paper a simplified procedure to incorporate some installations effects into the numerical finite element modelling of screw pile uplift is presented. The procedure consists of the approximation of the installation phase through 1) the application of a compression loading corresponding to successive embedment depths, 2) the use of modified soil properties over a disturbed zone. Pre-defined failure mechanisms are added to introduce some weakened zones due to either soil disturbance or strain-localisation. The results of numerical simulations are compared to a centrifuge test undertaken at the University of Dundee. The simulation considering an inclined failure mechanism and the simulated installation better captures the uplift capacity and initial stiffness.",
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Cerfontaine, B, Brown, M, Knappett, J & Davidson, C 2019, Finite element modelling of the uplift behaviour of screw piles in sand. in Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. pp. 69-75, 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom, 27/05/19. https://doi.org/10.20933/100001123

Finite element modelling of the uplift behaviour of screw piles in sand. / Cerfontaine, Benjamin; Brown, Michael; Knappett, Jonathan; Davidson, Craig.

Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. 2019. p. 69-75.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N1 - This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 753156. The authors would also like to acknowledge the support of EPSRC (Grant no. EP/N006054/1: Supergen Wind Hub: Grand Challenges Project: Screw piles for wind energy foundations)

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Cerfontaine B, Brown M, Knappett J, Davidson C. Finite element modelling of the uplift behaviour of screw piles in sand. In Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. 2019. p. 69-75 https://doi.org/10.20933/100001123