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首页> 外文期刊>Ocean Engineering >Performance and bearing behavior of monopile-friction wheel foundations under lateral-moment loading for offshore wind turbines
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Performance and bearing behavior of monopile-friction wheel foundations under lateral-moment loading for offshore wind turbines

机译：海上风力涡轮机侧向荷载作用下单桩摩擦轮基础的性能和承载特性

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The hybrid foundation of combining a friction wheel with a monopile is an innovative solution for offshore structures subjected to large lateral-moment loading. In this paper, the lateral-moment response of the monopilefriction wheel foundation in saturated sand are investigated via centrifuge tests and three-dimensional finite element method (FEM). A series of tests on the monopile, hybrid foundations with wheels of different diameters and thicknesses, and single wheel foundation were conducted. The results show that the lateral bearing capacity and stiffness improve significantly by adding a wheel to monopile, and the improvement follows the diameter or thickness of the wheel. An extensive experimental research regarding to the influential factors such as the embedment of the wheel and the vertical load is also presented. By means of FEM, the load transfer mechanism, interaction between the foundation and soil, and the bending moment in the pile are illustrated to study how the wheel contributes to the performance of the foundation system. Moreover, the effects of load eccentricity and vertical load are investigated by FE analyses.
机译：将摩擦轮与单桩组合在一起的混合动力基础是适用于承受大横向力矩载荷的海上结构的创新解决方案。本文通过离心试验和三维有限元法研究了单桩摩擦轮基础在饱和砂土中的横向弯矩响应。对单桩，具有不同直径和厚度的车轮的混合地基以及单轮基础进行了一系列测试。结果表明，通过在单桩中增加车轮，可显着提高侧向承载力和刚度，并且随着车轮的直径或厚度的增加而提高。还介绍了有关影响因素的广泛实验研究，例如车轮的嵌入和垂直载荷。通过有限元分析，说明了荷载传递机制，地基与土壤之间的相互作用以及桩中的弯矩，以研究轮如何对基础系统的性能做出贡献。此外，通过有限元分析研究了载荷偏心率和垂直载荷的影响。

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