Experimental study of bearing characteristic of bucket foundation of offshore wind turbine with bulkheads

LIAN Ji-jian; HE Wei; WU Mu-dan; WANG Hai-jun

doi:10.16285/j.rsm.2016.10.002

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Experimental study of bearing characteristic of bucket foundation of offshore wind turbine with bulkheads

更新时间：2026-06-25

- Experimental study of bearing characteristic of bucket foundation of offshore wind turbine with bulkheads
- Vol. 37, Issue 10, Pages: 2746-2752(2016)
- 作者机构：
  
  天津大学水利工程仿真与安全国家重点实验室,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.10.002
  CLC： TU476
- Online First：09 June 2018，
  
  Published：2016
- 稿件说明：
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LIAN Ji-jian, HE Wei, WU Mu-dan, et al. Experimental study of bearing characteristic of bucket foundation of offshore wind turbine with bulkheads[J]. 2016, 37(10): 2746-2752.
DOI：

LIAN Ji-jian, HE Wei, WU Mu-dan, et al. Experimental study of bearing characteristic of bucket foundation of offshore wind turbine with bulkheads[J]. 2016, 37(10): 2746-2752. DOI： 10.16285/j.rsm.2016.10.002.

摘要

为正确评估分舱对于海上风电筒型基础承载特性的影响，对有、无分舱板的相同钢筒进行室内模型对比试验，分别得出在水平荷载及弯矩共同作用下和竖直荷载作用下的荷载-位移曲线，及筒内外侧壁土压力及顶盖土压力的分布规律，同时进行有限元分析模拟。试验和计算结果表明：在竖向荷载作用下，分舱板使基础的极限承载力略有提高，分舱板分担了筒顶盖和筒壁的竖向承载，降低了顶盖的承载比例；在水平荷载和弯矩共同作用下，分舱板为筒型基础提供了较大的抗拔承载力，使筒型基础在水平和弯矩荷载作用下的极限承载力提高了20.2%，降低了极限状态下的水平位移和倾角。总之，分舱板不但可以提高海上风电基础施工浮运过程的稳定性，还可以提高基础运行时的极限承载力。

Abstract

In order to evaluate the influence of bulkheads on the bearing capacity of bucket foundation

a series of comparative model experiments is conducted on two identical steel buckets

one with bulkheads and the other without. The load-displacement curves under the combined action of horizontal load and bending moment or under vertical load

the distribution of the soil pressure on the inner

outer and upper walls of the bucket are obtained by the experiment individually. Finite element simulation is performed at the same time. The experimental and numerical results show that under vertical load

the bearing capacity of bucket foundation with bulkheads is a slightly higher than that of the foundation without bulkheads. The bulkheads share the vertical loads from the cover and sidewall

cutting the load applied on the cover. Under combined action of horizontal load and bending moment

the bulkheads provide large pulling resistance for the foundation

improving the ultimate bearing capacity by 20.2%

and reducing the ultimate horizontal displacement and angle. In a word

bulkheads can not only improve the stability during towing

but also increase the ultimate bearing capacity of offshore wind turbine foundation during the operation.

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