Projects per year
The offshore wind energy sector faces new challenges as it moves into deeper water deployment. To meet these challenges new and efficient foundation solutions are required. One potential solution is to upscale onshore screw piles but they require verification of performance for new geometries and demanding loading regimes. This paper presents a 3D Finite Element Analysis (3D-FEA) investigation of screw pile behaviour when subjected to combined vertical and lateral loading in sand. The investigation varied screw pile length (L) and helical plate diameter (Dh) on piles with fixed core diameter (Dp) whilst subjecting the piles to combined axial and lateral loading. The results were compared to straight shafted piles with the same core diameter. The results of the analysis show that vertical compression loads increase the lateral capacity of screw piles whereas vertical uplift loads marginally reduce the lateral capacity. The down side of this enhanced lateral capacity is that the screw piles experience higher bending moments. This suggest that when using screw piles for offshore foundation applications structures should be designed to maintain axial compressive loads on the piles and that induced bending moments need to be adequately assessed when deciding on appropriate structural sections.
|Number of pages||14|
|Journal||Proceedings of the Institution of Civil Engineers: Geotechnical Engineering|
|Early online date||17 Feb 2017|
|Publication status||Published - Jun 2017|
- Geotechnical engineering
- Offshore engineering
- Piles & piling
FingerprintDive into the research topics of 'Effects of vertical loading on lateral screw pile performance'. Together they form a unique fingerprint.
- 1 Finished
3D numerical analysis of screw pile subjected to axial compressive and lateral loadKumar, P. V. P., Patra, S., Haldar, S., Brown, M. J., Knappett, J. A. & Sharif, Y. U., 1 Jan 2023, Soil Dynamics, Earthquake and Computational Geotechnical Engineering : Proceedings of the Indian Geotechnical Conference 2021 Volume 5. Muthukkumaran, K., Ayothiraman, R. & Kolathayar, S. (eds.). Singapore: Springer , Vol. 5. p. 75-85 11 p. (Lecture Notes in Civil Engineering; vol. 300).
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Field investigation to evaluate the uplift capacity and installation performance of screw piles in sandBittar, E., Lehane, B., Richards, D., Blake, A., White, D., Brown, M. & Davidson, C., 5 May 2022, Proceedings of the 20th International Conference on Soil Mechanics and Geotechnical Engineering. Sydney: Australian Geomechanics Society, Vol. 2. p. 3195-3200 6 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contributionOpen AccessFile
Optimised screw pile design for offshore jacket foundations in medium-dense sandCerfontaine, B., Brown, M., Davidson, C., Sharif, Y., Huisman, M. & Ottolini, M., Jun 2022, In: Geotechnique Letters. 12, 2, p. 1-6 6 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile
Keynote lecture First International Workshop on Future Application of Screw Piles (IWFASP 2019) At: IIT Bhubaneshwar, India
Michael Brown (Keynote speaker)7 Dec 2019
Activity: Talk or presentation types › KeynoteFile
ICE Northern Geotechnical Group: Annual seminar, Piling
Michael Brown (Invited speaker)1 Nov 2017
Activity: Talk or presentation types › Invited talk
Heerema Developing Silent Foundations
1 item of Media coverage
Winner ICPE Best presentation award
Brown, Michael (Recipient), Sept 2018
Prize: Prize (including medals and awards)
- Civil Engineering - Professor (Teaching and Research)