岩土工程学报2013，Vol.35Issue(z1)：443-450,8.
海上风电机组吸力式桶形基础承载力分析与设计
Analysis and design of bearing capacity of suction caisson foundations of offshore wind turbines
摘要
Abstract
The suction caisson foundation is an important option for offshore wind turbines owing to its advantages of quick and convenient installation.With regard to the load characteristics of offshore wind turbines subjected to huge overturning moment loading,an approach for overturning bearing capacity of the mono-caisson based on deformation is proposed according to the model tests deformation mode and the soil-structure interaction of the mono-caisson foundation.The approach is different from the existing approaches for the ultimate bearing capacity.An approach for the overturning bearing capacity of multi-caisson foundations is also presented based on the multi-caisson model tests.The overturning bearing capacity of the mono-caisson is decided by the aspect ratio and the diameter,while that of the multi-caisson is depended on the diameter of the caisson and the spacing between the caissons.During a typical storm,the suction inside the caisson in silt is unable to dissipate.Thus its moment capacity can be analyzed as that under the undrained condition.The negative pressure will cause a substantial increase in the capacity of multi-caisson foundation against overturning moment.A typical wind turbine is taken as an example to carry out the calculation and design work utilizing the approaches mentioned above.This study can be a reference for similar real projects.关键词
风电机组/吸力式桶形基础/单桶/多桶/弯矩承载力/设计Key words
wind turbine/ suction caisson/ mono-caisson/ multi-caisson/ bending moment capacity/design分类
建筑与水利引用本文复制引用
朱斌,应盼盼,郭俊科,张文龙,孔德琼,陈云敏..海上风电机组吸力式桶形基础承载力分析与设计[J].岩土工程学报,2013,35(z1):443-450,8.基金项目
国家自然科学基金项目(51179169,50979097):中央高校基本科研业务费专项资金项目(2012FZA4019) （51179169,50979097）
浙江省重点创新团队支持计划项目(2009R50050) （2009R50050）
