Lateral and Axial Capacity of Monopiles for Offshore Wind Turbines
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- 作者：Aliasger Haiderali (1)
Ulas Cilingir (2)
Gopal Madabhushi (1) - 关键词：Axial capacity ; Clay ; Finite element analysis ; Lateral capacity ; Monopiles ; Offshore wind
- 刊名：Indian Geotechnical Journal
- 出版年：2013
- 出版时间：September 2013
- 年：2013
- 卷：43
- 期：3
- 页码：181-194
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Ulas Cilingir (2)
Gopal Madabhushi (1)
1. Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, UK
2. Yuksel Proje, Birlik Mh. 450. Cd No: 23, 06610, Ankara, Turkey - ISSN：2277-3347
文摘
Offshore wind has enormous worldwide potential to generate increasing amounts of clean, renewable energy. Monopile foundations are considered to be viable in supporting larger offshore wind turbines in shallow to medium depth waters. In this paper, the lateral and axial response of monopiles installed in undrained clays of varying shear strength and stiffness is investigated using three-dimensional finite element analysis. A combination of axial and lateral loads expected at an offshore wind farm located in a water depth of 30?m has been used in the analysis. Numerically derived monopile axial capacities will be compared to those calculated using an established method in the literature. In addition, the lateral monopile capacity will be determined at ultimate limit state and compared to that at the serviceability limit state. Through a parametric study, it will be shown that with the exception of extremely high axial loads that border on monopile axial capacities, variation in axial loads does not have a significant effect on the ultimate lateral capacity and lateral displacement of monopiles.