Results 41 to 50 of about 7,344 (270)

From cyclic sand ratcheting to tilt accumulation of offshore monopiles: 3D FE modelling using SANISAND-MS

Geotechnique, 2021
Serviceability criteria for offshore monopiles include the estimation of long-term, permanent tilt under repeated operational loads.
Haoyuan Liu, E. Kementzetzidis, J. Abell, F. Pisanò   +3 more
semanticscholar   +1 more source

Influence of scour depth and type on p–y curves for monopiles in sand under monotonic lateral loading in a geotechnical centrifuge

Ocean Engineering, 2020
The influence of scour on the lateral response of monopile foundations for offshore wind turbines is investigated in this paper. Application of lateral load-displacement (p-y) curves to predict the lateral pile behaviour is subject to uncertainty as many
G. Chortis, A. Askarinejad, L. Prendergast, Qiang Li, K. Gavin   +4 more
semanticscholar   +1 more source

Effect of Reinforced Bucket on Bearing Capacity and Natural Frequency of Offshore Wind Turbines Using Pile–Bucket Foundation

Advances in Civil Engineering, 2022
Large-diameter monopiles have been widely used for constructing offshore wind turbines. The bearing capacity of a monopile foundation is a significant research problem.
Xiaodong Pan, Ben He, Zonghao Yuan, Shiwu Xu, Danting Xu, Zhenqiang Jiang, Li Shi, Honglei Sun   +7 more
doaj   +1 more source

Borehole Instability in Decomposed Granite Seabed for Rock-Socketed Monopiles during “Drive-Drill-Drive” Construction Process: A Case Study

Journal of Marine Science and Engineering, 2023
Monopiles are commonly used in the construction of offshore wind turbines. However, implementing drive-drill-drive construction techniques in decomposed granite seabed may lead to borehole instability during the window period between drilling and pile ...
Bo Sun, Qi Zhang, Wenxuan Zhu, Jian Leng, Guanlin Ye   +4 more
doaj   +1 more source

Fatigue reliability of large monopiles for offshore wind turbines

International Journal of Fatigue, 2020
Upscaling of traditional monopiles to support larger offshore wind turbines introduces fatigue-related design challenges. The design becomes mainly driven by wave-induced fatigue loads, and potential resonant responses can have significant contributions ...
Joey Velarde, Claus Kramhøft, J. Sørensen, G. Zorzi   +3 more
semanticscholar   +1 more source

Development of a semi-structured database for back-analysis of the foundation stiffness of offshore wind monopiles

Acta Geotechnica, 2022
Offshore wind turbines founded on monopiles are highly dynamic structures in which the stiffness of the soil adjacent to the monopile controls the natural frequency of the structure.
B. Stuyts, W. Weijtjens, C. Devriendt
semanticscholar   +1 more source

Numerical Analysis of Jacked and Impact-Driven Pile Installation Procedures in Offshore Wind Turbine Foundations

Geotechnics
The increasing global demand for renewable energy has resulted in a high interest in wind power, with offshore wind farms offering better performance than onshore installations.
Ka Lok Chan, Susana Lopez-Querol, Pedro Martin-Moreta   +2 more
doaj   +1 more source

Assessment of natural frequency of installed offshore wind turbines using nonlinear finite element model considering soil-monopile interaction

Journal of Rock Mechanics and Geotechnical Engineering, 2018
A nonlinear finite element model is developed to examine the lateral behaviors of monopiles, which support offshore wind turbines (OWTs) chosen from five different offshore wind farms in Europe.
Djillali Amar Bouzid, Subhamoy Bhattacharya, Lalahoum Otsmane   +2 more
doaj   +1 more source

The Lateral Behavior of Large-Diameter Monopiles for Offshore Wind Turbines Based on the p-y Curve and Solid FEM Methods

Journal of Marine Science and Engineering, 2023
With the rapid increase in offshore wind turbines in China, monopiles with diameters exceeding 2 m are widely used. As these piles are subjected to lateral loads caused by wind, waves, and currents, the designs of the pile foundations supporting the ...
Tao Li, Xinran Yu, Ben He, Song Dai
doaj   +1 more source

Scour Effect on the Lateral Bearing Behaviour of Monopiles Considering Different Slenderness Ratios

Water
Scour leads to the loss of soil around monopile foundations for offshore wind turbines, which affects their structural safety. In this paper, the effect of scour on the lateral behaviour of monopiles was extensively investigated using finite element ...
Qiang Li, Xinquan Wang, K. Gavin, Shengxiang Jiang, Hongguo Diao, Mingyuan Wang, Kangyu Wang   +6 more
semanticscholar   +1 more source