Analytical base shear reaction curves for predicting monopile response in undrained clay
Analytical base shear reaction curves for predicting monopile response in undrained clay
Incorporating soil reaction curves at the monopile tip when calculating the response at the monopile head reduces overprediction of deformations when compared with solely employing traditional p-y models. This is particularly important for squat monopile foundations that are often used for offshore wind turbines. However, published soil reaction curves at the pile tip are limited in number and are the subject of far less research than the commonly employed p-y curves. In this work, closed-form expressions for the shear response at the pile tip are developed using a cone model for the soil material under the pile base, combined with a number of simplified non-linear soil constitutive models. The solutions can be used in conjunction with available p-y curves to obtain the full displacement response of monopile foundations without the need for time-consuming 3D numerical analyses, which is particularly useful in the early stages of design. The resultant non-linear expressions are compared with available solutions using a two-part similarity approach.
International Society for Soil Mechanics and Geotechnical Engineering
Walker, C.
96b2a212-4c07-42f1-83fd-d5ffacfe8629
Mylonakis, G.
8aa37314-d7c9-4962-bcc3-9a0ce1c4537b
Karamitros, D.
75c46bab-c3fb-48b9-b29e-11aface3c67a
Crispin, J.J.
61fc2c73-e279-4125-a241-67eff3862904
Bateman, A.H.
f325d33d-9619-4b96-b3b9-d40bbb36d669
9 June 2025
Walker, C.
96b2a212-4c07-42f1-83fd-d5ffacfe8629
Mylonakis, G.
8aa37314-d7c9-4962-bcc3-9a0ce1c4537b
Karamitros, D.
75c46bab-c3fb-48b9-b29e-11aface3c67a
Crispin, J.J.
61fc2c73-e279-4125-a241-67eff3862904
Bateman, A.H.
f325d33d-9619-4b96-b3b9-d40bbb36d669
Walker, C., Mylonakis, G., Karamitros, D., Crispin, J.J. and Bateman, A.H.
(2025)
Analytical base shear reaction curves for predicting monopile response in undrained clay.
In Proceedings of the 5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2025).
International Society for Soil Mechanics and Geotechnical Engineering.
8 pp
.
(doi:10.53243/ISFOG2025-369).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Incorporating soil reaction curves at the monopile tip when calculating the response at the monopile head reduces overprediction of deformations when compared with solely employing traditional p-y models. This is particularly important for squat monopile foundations that are often used for offshore wind turbines. However, published soil reaction curves at the pile tip are limited in number and are the subject of far less research than the commonly employed p-y curves. In this work, closed-form expressions for the shear response at the pile tip are developed using a cone model for the soil material under the pile base, combined with a number of simplified non-linear soil constitutive models. The solutions can be used in conjunction with available p-y curves to obtain the full displacement response of monopile foundations without the need for time-consuming 3D numerical analyses, which is particularly useful in the early stages of design. The resultant non-linear expressions are compared with available solutions using a two-part similarity approach.
Text
ISFOG2025-369
- Version of Record
More information
Published date: 9 June 2025
Identifiers
Local EPrints ID: 503592
URI: http://eprints.soton.ac.uk/id/eprint/503592
PURE UUID: cc844c5c-8a64-4542-9ae7-e317dcdaecfb
Catalogue record
Date deposited: 05 Aug 2025 17:01
Last modified: 22 Aug 2025 02:44
Export record
Altmetrics
Contributors
Author:
C. Walker
Author:
G. Mylonakis
Author:
D. Karamitros
Author:
J.J. Crispin
Author:
A.H. Bateman
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics