Physical modelling of screw piles for offshore wind energy foundations

Research output: Contribution to conferencePaper

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Abstract

Using existing design methodologies, a series of screw piles were designed to meet the loads required for an upper-bound design scenario of a steel jacket supported offshore wind turbine in deep water. The installation torque and force were measured from centrifuge tests of 1/80 th scale models of the screw piles in very dense sand. Results indicate that the installation requirements are significant and may be beyond the capabilities of existing conventional installation equipment. Optimisation of the screw pile design was successful in reducing the installation force and torque by 34 and 17% respectively over the non-optimised design variant. Accurate prediction of the installation torque is critical and can be achieved using correlations with cone penetration test data.
Original languageEnglish
Pages31-38
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

Wind power
Piles
Torque
Offshore wind turbines
Centrifuges
Cones
Sand
Steel
Water

Keywords

  • Screw piles
  • Torque
  • Centrifuge model

Cite this

Brown, M., Davidson, C., Brennan, A., Knappett, J., Cerfontaine, B., & Sharif, Y. (2019). Physical modelling of screw piles for offshore wind energy foundations. 31-38. Paper presented at 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom. https://doi.org/10.20933/100001123
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title = "Physical modelling of screw piles for offshore wind energy foundations",
abstract = "Using existing design methodologies, a series of screw piles were designed to meet the loads required for an upper-bound design scenario of a steel jacket supported offshore wind turbine in deep water. The installation torque and force were measured from centrifuge tests of 1/80 th scale models of the screw piles in very dense sand. Results indicate that the installation requirements are significant and may be beyond the capabilities of existing conventional installation equipment. Optimisation of the screw pile design was successful in reducing the installation force and torque by 34 and 17{\%} respectively over the non-optimised design variant. Accurate prediction of the installation torque is critical and can be achieved using correlations with cone penetration test data.",
keywords = "Screw piles, Torque, Centrifuge model",
author = "Michael Brown and Craig Davidson and Andrew Brennan and Jonathan Knappett and Benjamin Cerfontaine and Yaseen Sharif",
note = "The authors would like to acknowledge the support of EPSRC (Grant no. EP/N006054/1: Supergen Wind Hub Grand Challenges Project: Screw piles for wind energy foundations) and the Iraqi Ministry of higher Education of Scientific Research (MOHESR). This project has also received support from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 753156. Elements of this work were undertaken using facilities developed as part of the ERDF-funded Scottish Marine & Renewables Test Centre (SMART) at the University of Dundee; 1st International Symposium on Screw Piles for Energy Applications, ISSPEA ; Conference date: 27-05-2019 Through 28-05-2019",
year = "2019",
month = "5",
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Brown, M, Davidson, C, Brennan, A, Knappett, J, Cerfontaine, B & Sharif, Y 2019, 'Physical modelling of screw piles for offshore wind energy foundations' Paper presented at 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom, 27/05/19 - 28/05/19, pp. 31-38. https://doi.org/10.20933/100001123

Physical modelling of screw piles for offshore wind energy foundations. / Brown, Michael; Davidson, Craig; Brennan, Andrew; Knappett, Jonathan; Cerfontaine, Benjamin; Sharif, Yaseen.

2019. 31-38 Paper presented at 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom.

Research output: Contribution to conferencePaper

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T1 - Physical modelling of screw piles for offshore wind energy foundations

AU - Brown, Michael

AU - Davidson, Craig

AU - Brennan, Andrew

AU - Knappett, Jonathan

AU - Cerfontaine, Benjamin

AU - Sharif, Yaseen

N1 - The authors would like to acknowledge the support of EPSRC (Grant no. EP/N006054/1: Supergen Wind Hub Grand Challenges Project: Screw piles for wind energy foundations) and the Iraqi Ministry of higher Education of Scientific Research (MOHESR). This project has also received support from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 753156. Elements of this work were undertaken using facilities developed as part of the ERDF-funded Scottish Marine & Renewables Test Centre (SMART) at the University of Dundee

PY - 2019/5/27

Y1 - 2019/5/27

N2 - Using existing design methodologies, a series of screw piles were designed to meet the loads required for an upper-bound design scenario of a steel jacket supported offshore wind turbine in deep water. The installation torque and force were measured from centrifuge tests of 1/80 th scale models of the screw piles in very dense sand. Results indicate that the installation requirements are significant and may be beyond the capabilities of existing conventional installation equipment. Optimisation of the screw pile design was successful in reducing the installation force and torque by 34 and 17% respectively over the non-optimised design variant. Accurate prediction of the installation torque is critical and can be achieved using correlations with cone penetration test data.

AB - Using existing design methodologies, a series of screw piles were designed to meet the loads required for an upper-bound design scenario of a steel jacket supported offshore wind turbine in deep water. The installation torque and force were measured from centrifuge tests of 1/80 th scale models of the screw piles in very dense sand. Results indicate that the installation requirements are significant and may be beyond the capabilities of existing conventional installation equipment. Optimisation of the screw pile design was successful in reducing the installation force and torque by 34 and 17% respectively over the non-optimised design variant. Accurate prediction of the installation torque is critical and can be achieved using correlations with cone penetration test data.

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KW - Torque

KW - Centrifuge model

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Brown M, Davidson C, Brennan A, Knappett J, Cerfontaine B, Sharif Y. Physical modelling of screw piles for offshore wind energy foundations. 2019. Paper presented at 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom. https://doi.org/10.20933/100001123