Lateral Resistance of Hybrid Monopile-Footing Foundation in Cohesive Soil for Offshore Wind Turbines

International journal of structural and civil engineering research Pub Date : 1900-01-01 DOI:10.18178/ijscer.12.2.52-55

Lei Huang, Jiangtao Yi, B. Liu, Xiu-li Wang

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Abstract

— Hybrid monopile-footing foundation, i.e., the addition of circular load-bearing plates at the mudline of large diameter offshore piles subjected to large horizontal-moment loads, is an innovative offshore structure. In this paper, the ultimate horizontal bearing capacity of hybrid monopile foundations is investigated by numerical simulation, in ABAQUS v6.14-1, using the small strain finite element method to simulate hybrid monopile-footing foundation subjected to lateral loads and to study the horizontal bearing performance of hybrid monopile-footing foundations in saturated soft clay soils with different circular footing foundation diameters. The Tresca model is used in this simulation and the validity of this simulation is verified by comparing the analysis with the theoretical and numerical solutions of circular footing foundations. The lateral load bearing performance of hybrid monopile foundations in soft clay soils is obtained by comparing and analysing the ultimate lateral bearing capacity for different circular footing foundation diameters.

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海上风力发电机组黏性土中单桩基础的横向阻力

-混合单桩基础是一种创新的海上结构形式，即在大直径近海桩承受大水平弯矩荷载时，在桩的泥线处增设圆形承重板。本文采用数值模拟的方法，在ABAQUS v6.14-1中，采用小应变有限元法模拟横向荷载作用下的混合单桩基础的极限水平承载力，研究不同圆形基础直径的饱和软粘土中混合单桩基础的水平承载性能。本文采用了Tresca模型，并与圆形基础的理论解和数值解进行了比较，验证了该模型的有效性。通过对比分析不同圆形基础直径下单桩混合地基的极限侧向承载力，得出了软粘土地基单桩混合地基的侧向承载性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International journal of structural and civil engineering research

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