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首页> 外文期刊>Applied Ocean Research >Modelling the drained response of bucket foundations for offshore wind turbines under general monotonic and cyclic loading
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Modelling the drained response of bucket foundations for offshore wind turbines under general monotonic and cyclic loading

机译：模拟一般单调和循环载荷下海上风机叶片基础的排水响应

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The response of bucket foundations on sand subjected to planar monotonic and cyclic loading is investigated in the paper. Thirteen monotonic and cyclic laboratory tests on a skirted footing model having a 0.3 m diameter and embedment ratio equal to 1 are presented. The loading regime reproduces the typical conditions of offshore wind turbines: very large cyclic overturning moment, large cyclic horizontal load and comparatively little, self-weight induced, vertical load. The experimental soil-foundation response is interpreted within the macro-element approach, using an existing analytical model, suitably modified to accommodate the footing embedment and the application of cyclic load. Details of the proposed model are provided together with evidences of its ability to reproduce the essential features of the experimentally observed behaviour. The results of the study aim at increasing the confidence in the use of the macro-element approach to predict the response of bucket foundations for offshore wind turbines, notably as the long-term accumulated displacements are concerned. (C) 2015 Elsevier Ltd. All rights reserved.
机译：本文研究了桶形基础在平面单调和循环荷载作用下对砂土的响应。提出了对具有0.3 m直径和等于1的嵌入比的裙式基础模型的十三项单调和循环实验室测试。加载方式重现了海上风力涡轮机的典型条件：很大的周期性倾覆力矩，很大的周期性水平负载以及相对较小的自重感应垂直负载。使用现有的分析模型，在宏观元素​​方法中解释了试验的土壤基础响应，并对其进行了适当修改以适应基础嵌入和循环荷载的施加。提供了所提议模型的详细信息，以及其再现实验观察到的行为的基本特征的能力的证据。这项研究的结果旨在提高使用宏元方法预测海上风力发电机叶片基础的信心，尤其是考虑到长期累积位移时。 （C）2015 Elsevier Ltd.保留所有权利。

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