Mr. Iain Arthur
School of Planning Architecture and Civil Engineering
David Keir Building, Stranmillis Rd., BT9 5AG
Tel (+44) (0) 28 9097 5606
- 1st class MEng (Hons) Civil Engineering, Queen’s University Belfast
- Member of Institution of Civil Engineers
- The Gregg Doran Scholarship 2012
- QUEST Scholarship (Partnered with URS/Scott Wilson) 2008-2012
Long-term performance of offshore foundations subject to cyclic loading
After graduating from Queen’s University Belfast with a 1st class MEng (Hons) in Civil Engineering in June 2012, I returned to QUB to begin my PhD in October of the same year studying offshore foundations.
The aim of the project is to examine the behaviour of monopile foundations subjected to complex loading cycles and to evaluate their performance in relation to the type of seabed, depth of penetration and rigidity of the piles.
The investigation is a laboratory based study conducting model testing of piles under multilateral two-way cyclic loading. A novel experimental setup has been developed which allows application of these loads while also recreating in situ stress conditions without use of a centrifuge device. A range of soil types are tested varying from sand to silt. The penetration of the piles into the seabed is also varied to study the effect this has on pile behaviour. The accumulated rotation and change in stiffness with number of load cycles applied is measured. This research aims to improve the understanding of offshore pile behaviour and contribute to the optimisation of foundations for offshore renewable energy devices.
Poster presented at Geotechnique Symposium in Print (3 June 2013):