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Keywords: monopile
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35226-MS
..., cost-effective, and reliable solutions. risk management information geology foundation reservoir characterization uncertainty feasibility consideration wtg strategic planning and management geologist assessment project management site investigation frequency monopile investigation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35312-MS
..., the authors performed in-house research on the subject. This paper deals with full scale testing performed to investigate the load-penetration behavior of armor rock. Tests comprised penetration of a steel pile section of a monopile into armor rock of two different gradings, placed on a sand bed in a 20 ft...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35333-MS
... Abstract Uncontrolled punch through during set down of an XXL monopile can be disastrous for a (floating) installation vessel. An analytical model was developed to predict punch through capacity for monopiles on sand-over-clay conditions. Material Point Method (MPM) analyses were used...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30973-MS
... and reduction in both operational and schedule risk. mooring system floating production storage and offloading surface area subsea system upstream oil & gas pure horizontal loading fpso floating production system fin floating production storage & offloading resistance monopile fin...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30793-MS
... data be used for post-processing to gain a more in-depth understanding of the soil behavior. vibratory modeling & simulation foundation hammer subsea system soil model prediction soil behavior installation reservoir characterization soil parameter vibratory driving monopile...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29673-MS
... Abstract The conventional design methods for laterally loaded offshore foundations in sand, API RP 2GEO (2014) and DNV (2018) , were not developed for wind turbine monopiles that experience lateral loads imposing relatively small lateral displacements in service. This paper presents...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29373-MS
...OTC-29373-MS PISA Design Methods for Offshore Wind Turbine Monopiles Byron W. Byrne and Harvey J. Burd, University of Oxford; Lidija Zdravkovic, Imperial College London; Christelle N. Abadie, University of Cambridge; Guy T. Houlsby, University of Oxford; Richard J. Jardine, Imperial College London...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29400-MS
... Abstract Upon recently, most offshore foundations were based on a number of driven piles that were installed with an impact hammer. With the increase in offshore windfarms two major developments have occurred: the shift from jackets to monopiles, leading to increase of the diameter...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29463-MS
...). These models exhibit characteristic foundation behaviour such as nonlinearity, coupling of the load from different load components and hysteretic load dependent damping. This paper presents two of the REDWIN models, one applicable for monopile foundations and one for skirted suction caisson foundations. Use...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28834-MS
... constraints, or noise mitigation to prevent damage of sensitive marine life. installation vessel monopile foundation blue hammer monopile resonance offshore wind hammer strategic planning and management conventional hammer installation foundation design renewable energy sustainable...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27763-MS
...OTC-27763-MS Comparison of Self Weight Penetration Prediction Methods for Large Diameter Monopiles in North Sea Soils A. Shonberg, DONG Energy; I. Anusic, Norwegian University of Science and Technology; M. Harte, J. Schupp, S. Meissl, and M. A. Liingaard, DONG Energy Copyright 2017, Offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27765-MS
... Abstract The objective of this paper was to evaluate the sensitivity of the natural frequency for an offshore wind turbine monopile in normally consolidated marine clay to different p-y models being used in practice: API RP 2GEO (2011) , which is the existing Recommended Practice for offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26922-MS
... be condensed into six main types as seen in Figure 1. From the six main typologies, as mentioned in (Aaron Smith, 2015), it can be seen that 75% of the fully commissioned 8.9GW have Monopiles as the selected substructure and up to 66% in the announced projects. Moreover, 7% of the 16GW announced projects have...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27181-MS
... are widely used for offshore oil and gas platforms. The failure mode of these slender piles is the formation of flexural plastic hinges. In contrast, the monopiles supporting offshore wind turbines are typically rigid with 3.5 – 6 m diameter and 30 – 40 m length. The failure mode of these monopiles likely...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26889-MS
...-up vessel tolerance installation operation offshore technology conference penetration social responsibility installation vessel orientation procedure sustainable development nacelle renewable energy operation sustainability weather window monopile offshore wind farm owf installation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25960-MS
...). If a prediction method is used to compute the soil resistance to driving, the evaluation of pile drivability may be overly conservative. Ageing in both clay and sand should also be taken into account. Wind turbines are often supported on large diameter monopiles. The applicability of the p-y data for such large...

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