A modified CPT based installation torque prediction for large screw piles in sand

C. Davidson; T. Al-Baghdadi; M. Brown; A. Brennan; J. Knappett; C. Augarde; W. Coombs; L. Wang; D. Richards; A. Blake; J. Ball

A modified CPT based installation torque prediction for large screw piles in sand

C. Davidson, T. Al-Baghdadi, M. Brown, A. Brennan, J. Knappett, C. Augarde, W. Coombs, L. Wang, D. Richards, A. Blake, J. Ball

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

16 Citations (Scopus)

313 Downloads (Pure)

Abstract

Screw piles have been suggested as an alternative foundation solution to straight-shafted piles for jacket supported offshore wind turbines in deep water. The significant environmental loads in the marine environment will require substantially larger screw piles than those currently employed in onshore applications. This raises questions over the suitability of current design methods for capacity and installation torque. This paper aims to address this issue by presenting a screw pile installation torque prediction method based on cone resistance values from cone penetration test (CPT) data. The proposed method, developed using centrifuge modelling techniques in dry sand, provides accurate predictions of installation torque for both centrifuge and field scale screw piles. Furthermore, unlike existing CPT-torque correlations, the proposed method is shown to be applicable to multi-helix screw piles.

Original language	English
Title of host publication	Cone Penetration Testing 2018
Subtitle of host publication	Proceedings of the 4th International Symposium on Cone Penetration Testing
Editors	Michael A. Hicks, Federico Pisanò, Joek Peuchen
Publisher	CRC Press
Pages	255-261
Number of pages	7
Edition	1
ISBN (Electronic)	9780429000485
Publication status	Published - 13 Jun 2018
Event	CTP18 - 4th International Symposium on Cone Penetration Testing - Delft University of Technology, Delft, Netherlands Duration: 21 Jun 2018 → 22 Jun 2018 http://www.cpt18.org/

Conference

Conference	CTP18 - 4th International Symposium on Cone Penetration Testing
Country/Territory	Netherlands
City	Delft
Period	21/06/18 → 22/06/18
Internet address	http://www.cpt18.org/

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Davidson, C., Al-Baghdadi, T., Brown, M., Brennan, A., Knappett, J., Augarde, C., Coombs, W., Wang, L., Richards, D., Blake, A., & Ball, J. (2018). A modified CPT based installation torque prediction for large screw piles in sand. In M. A. Hicks, F. Pisanò, & J. Peuchen (Eds.), Cone Penetration Testing 2018: Proceedings of the 4th International Symposium on Cone Penetration Testing (1 ed., pp. 255-261). CRC Press.

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title = "A modified CPT based installation torque prediction for large screw piles in sand",

abstract = "Screw piles have been suggested as an alternative foundation solution to straight-shafted piles for jacket supported offshore wind turbines in deep water. The significant environmental loads in the marine environment will require substantially larger screw piles than those currently employed in onshore applications. This raises questions over the suitability of current design methods for capacity and installation torque. This paper aims to address this issue by presenting a screw pile installation torque prediction method based on cone resistance values from cone penetration test (CPT) data. The proposed method, developed using centrifuge modelling techniques in dry sand, provides accurate predictions of installation torque for both centrifuge and field scale screw piles. Furthermore, unlike existing CPT-torque correlations, the proposed method is shown to be applicable to multi-helix screw piles.",

author = "C. Davidson and T. Al-Baghdadi and M. Brown and A. Brennan and J. Knappett and C. Augarde and W. Coombs and L. Wang and D. Richards and A. Blake and J. Ball",

year = "2018",

month = jun,

day = "13",

language = "English",

pages = "255--261",

editor = "Hicks, {Michael A.} and Federico Pisan{\`o} and Joek Peuchen",

booktitle = "Cone Penetration Testing 2018",

publisher = "CRC Press",

edition = "1",

note = "CTP18 - 4th International Symposium on Cone Penetration Testing ; Conference date: 21-06-2018 Through 22-06-2018",

url = "http://www.cpt18.org/",

}

Davidson, C, Al-Baghdadi, T, Brown, M , Brennan, A , Knappett, J, Augarde, C, Coombs, W, Wang, L, Richards, D, Blake, A & Ball, J 2018, A modified CPT based installation torque prediction for large screw piles in sand. in MA Hicks, F Pisanò & J Peuchen (eds), Cone Penetration Testing 2018: Proceedings of the 4th International Symposium on Cone Penetration Testing. 1 edn, CRC Press, pp. 255-261, CTP18 - 4th International Symposium on Cone Penetration Testing, Delft, Netherlands, 21/06/18.

A modified CPT based installation torque prediction for large screw piles in sand. / Davidson, C.; Al-Baghdadi, T.; Brown, M. et al.
Cone Penetration Testing 2018: Proceedings of the 4th International Symposium on Cone Penetration Testing. ed. / Michael A. Hicks; Federico Pisanò; Joek Peuchen. 1. ed. CRC Press, 2018. p. 255-261.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A modified CPT based installation torque prediction for large screw piles in sand

AU - Davidson, C.

AU - Al-Baghdadi, T.

AU - Brown, M.

AU - Brennan, A.

AU - Knappett, J.

AU - Augarde, C.

AU - Coombs, W.

AU - Wang, L.

AU - Richards, D.

AU - Blake, A.

AU - Ball, J.

PY - 2018/6/13

Y1 - 2018/6/13

N2 - Screw piles have been suggested as an alternative foundation solution to straight-shafted piles for jacket supported offshore wind turbines in deep water. The significant environmental loads in the marine environment will require substantially larger screw piles than those currently employed in onshore applications. This raises questions over the suitability of current design methods for capacity and installation torque. This paper aims to address this issue by presenting a screw pile installation torque prediction method based on cone resistance values from cone penetration test (CPT) data. The proposed method, developed using centrifuge modelling techniques in dry sand, provides accurate predictions of installation torque for both centrifuge and field scale screw piles. Furthermore, unlike existing CPT-torque correlations, the proposed method is shown to be applicable to multi-helix screw piles.

AB - Screw piles have been suggested as an alternative foundation solution to straight-shafted piles for jacket supported offshore wind turbines in deep water. The significant environmental loads in the marine environment will require substantially larger screw piles than those currently employed in onshore applications. This raises questions over the suitability of current design methods for capacity and installation torque. This paper aims to address this issue by presenting a screw pile installation torque prediction method based on cone resistance values from cone penetration test (CPT) data. The proposed method, developed using centrifuge modelling techniques in dry sand, provides accurate predictions of installation torque for both centrifuge and field scale screw piles. Furthermore, unlike existing CPT-torque correlations, the proposed method is shown to be applicable to multi-helix screw piles.

UR - https://www.taylorfrancis.com/books/9780429000485

M3 - Conference contribution

SP - 255

EP - 261

BT - Cone Penetration Testing 2018

A2 - Hicks, Michael A.

A2 - Pisanò, Federico

A2 - Peuchen, Joek

PB - CRC Press

T2 - CTP18 - 4th International Symposium on Cone Penetration Testing

Y2 - 21 June 2018 through 22 June 2018

ER -

A modified CPT based installation torque prediction for large screw piles in sand

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Physical modelling of deep screw piles in medium-dense sands for floating wind applications

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Public engagement talk, Cafe Scientifique: Developing Silent Foundations & Anchors for Offshore Renewable Applications

Invited Speaker, SUT OSIG One day seminar: Development and investigation of silent foundations for offshore renewable energy

Invited Speaker, NGI, Norway: Using DEM to Investigate the Applicability of Screw Piles as an Alternative Solution for Offshore Wind Turbine Foundations

University of Dundee Test Data for the EPSRC Supergen Wind Hub Grand Challenges Project: Screw Piles for Wind Energy Foundations (Grant no. EP/N006054/1)

Dundee University engineers hope to silence offshore construction

Heerema Developing Silent Foundations

Heerema developing Silent Foundation Concepts Technology in coordination with the University of Dundee

Winner ICPE Best presentation award

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A modified CPT based installation torque prediction for large screw piles in sand

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UN SDGs

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