Projects per year
Screwpiles are, as the name suggests, piled foundations which are screwed into the ground. They provide restraint to both upwards and downward loading directions and are commonly used for light structures subject to overturning or wind loading, such as sign gantries at the sides of motorways. An EPSRC-funded project led by University of Dundee has recently started, with Durham and Southampton as partners, in which the use of screwpiles (individual or in groups) for offshore foundations is under investigation. At Durham, a numerical modelling framework based on the material point method (MPM) is being developed for the installation phase of a screwpile. The aim is to use the model to provide an accurate representation of the in situ ground conditions once the pile is installed, as during installation the ground is disturbed and any model that "wishes in place" a screwpile may not provide representative long-term performance predictions. Following modelling of installation, the soil state will be transferred to a standard finite element package for the subsequent modelling of in-service performance (the MPM being considered unnecessary and computationally expensive for this phase of the life of a screwpile). In this preliminary work, we present the development of features of this numerical tool to simulate the screwpile installation. These features include a moving mesh concept (both translation and rotation) and interface elements. The effectiveness of the algorithm is illustrated through simple examples.
|Number of pages||9|
|Early online date||27 Feb 2017|
|Publication status||Published - 2017|
- Elasto-plastic interface element
- Implicit MPM
- Implicit stress integration
- Moving mesh
- Penetration problem
ASJC Scopus subject areas
FingerprintDive into the research topics of 'Modelling Screwpile Installation Using the MPM'. Together they form a unique fingerprint.
- 1 Finished
Finite element modelling of the uplift behaviour of screw piles in sandCerfontaine, B., Brown, M., Knappett, J. & Davidson, C., 27 May 2019, Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. p. 69-75
Research output: Chapter in Book/Report/Conference proceeding › Conference contributionOpen AccessFile270 Downloads (Pure)
Numerically modelling the installation and loading of screw piles using demBrown, M., Sharif, Y., Ciantia, M., Knappett, J., Davidson, C., Cerfontaine, B. & Robinson, S., 27 May 2019, p. 101-108.
Research output: Contribution to conference › Paper › peer-reviewOpen AccessFile614 Downloads (Pure)
Physical modelling of screw piles for offshore wind energy foundationsBrown, M., Davidson, C., Brennan, A., Knappett, J., Cerfontaine, B. & Sharif, Y., 27 May 2019, p. 31-38.
Research output: Contribution to conference › Paper › peer-reviewOpen AccessFile250 Downloads (Pure)
- 1 Membership of committee
1st International Symposium on Screw Piles for Energy Applications (Event)
Michael Brown (Chair)Dec 2018 → 28 May 2019
Activity: Membership types › Membership of committee
Dundee University engineers hope to silence offshore construction
1 item of Media coverage
Heerema Developing Silent Foundations
1 item of Media coverage
How about Screwing Offshore Wind Piles?
1 Media contribution
Winner ICPE Best presentation award
Brown, Michael (Recipient), Sept 2018
Prize: Prize (including medals and awards)