Improving the lateral capacity of monopiles in submarine clay
Improving the lateral capacity of monopiles in submarine clay
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DOI：
10.1680/jgrim.14.00039
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发表时间：
2016-10
期刊：
影响因子：
--
通讯作者：
A. Haiderali;G. Madabhushi
中科院分区：
文献类型：
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作者：
A. Haiderali;G. Madabhushi
欧洲海上风电行业已经经历了巨大的增长，导致海上风电场具有更大的风力涡轮机，这些风力涡轮机位于更远离海岸的恶劣环境条件下。为了满足由此产生的更高的负荷，目前的趋势是不断增加的大小，这是最流行的基础类型。然而，鉴于目前的安装技术，这在长期内是不可行的。本文介绍了三维有限元分析的结果，调查改善横向能力的大直径粘土砖时，结合使用的混合功能和岩石护面。在水深为30 m的海上风电场位置，在预期的垂直、横向和力矩载荷组合下，对无裙缘钢筋混凝土和钢基脚、裙缘钢基脚和钢翅片进行了评估。研究结果，基于剪切和弯曲力矩的发展，在水泥土和活动土…
The European offshore wind sector has been undergoing tremendous growth, resulting in offshore wind farms having larger wind turbines that are located further away from the shore in harsh environmental conditions. To cater for the resulting higher loads, the current trend has been to continually increase the size of the monopile, which is the most popular foundation type. However, this is not viable in the long term given the current installation technology. This paper presents the results of three-dimensional finite-element analyses investigating the improvement in the lateral capacity of a large-diameter monopile in clay when used in combination with hybrid features and rock armour. Non-skirted reinforced concrete and steel footings, a skirted steel footing and steel fins were assessed under a combination of vertical, lateral and moment loads expected at an offshore wind farm location with a water depth of 30 m. The findings, based on shear and bending moment developed in the monopile and mobilised soil...