Method for calculating the horizontal bearing capacity of segmentally-tapered bucket foundation of offshore wind turbines

LIU Jin-long; CHEN Lu-wang; WANG Ji-li; WANG Dong-lin

doi:10.16285/j.rsm.2015.10.002

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Method for calculating the horizontal bearing capacity of segmentally-tapered bucket foundation of offshore wind turbines

更新时间：2026-06-25

- Method for calculating the horizontal bearing capacity of segmentally-tapered bucket foundation of offshore wind turbines
- Vol. 36, Issue 10, Pages: 2750-2758(2015)
- 作者机构：
  
  1. 合肥学院建筑工程系,安徽,合肥,230601
  2. 合肥工业大学资源与环境工程学院,安徽,合肥,230009
  3. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点试验室,湖北,武汉,430071
  4. 安徽建筑大学土木工程学院,安徽,合肥,230601
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.10.002
  CLC： P754
- Online First：13 June 2018，
  
  Published：2015
- 稿件说明：
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LIU Jin-long, CHEN Lu-wang, WANG Ji-li, et al. Method for calculating the horizontal bearing capacity of segmentally-tapered bucket foundation of offshore wind turbines[J]. 2015, 36(10): 2750-2758.
DOI：

LIU Jin-long, CHEN Lu-wang, WANG Ji-li, et al. Method for calculating the horizontal bearing capacity of segmentally-tapered bucket foundation of offshore wind turbines[J]. 2015, 36(10): 2750-2758. DOI： 10.16285/j.rsm.2015.10.002.

摘要

在部分浅海由于大型施工船舶无法进入，海上风电工程中传统的重力式基础或桩基础不再适用，为此提出了一种新型基础——分段斜壁桶形基础。基于极限平衡法对分段斜壁桶形基础的水平承载力进行了系统性研究，提出了水平承载力计算方法，并进一步考察了斜壁倾角、桶高、桶径、土性参数等对水平承载力的影响。计算表明，水平承载力随着上部桶壁倾角、下部桶壁倾角、地基反力比例系数、桶基顶部直径、桶基高度的增大而增大，随着海床深度的增加而减小。基于体积压缩率的概念，论证并推荐优先使用上部桶壁倾斜、下部桶壁直立的桶形基础构型。建议发展针对海床地基反力比例系数的准确确定方法。研究结果有助于对桶形基础进行优化设计。

Abstract

Because large construction ships cannot enter the shallow sea

traditional configuration foundations

such as gravity-type foundation and pile foundation

are not suited for offshore wind power project in shallow seas. Therefore

a new type of foundation—segmentally-tapered bucket foundation is proposed. Based on the limit equilibrium method

a systematic method is proposed to calculate the horizontal bearing capacity of the segmentally-tapered bucket foundation. The influences of obliquity of wall

foundation height

top diameter of bucket and soil parameters on the horizontal bearing capacity of the segmentally-tapered bucket foundation are analyzed. It is found that the horizontal bearing capacity increases with the increase of the wall obliquity

soil resistance

top diameter of bucket and foundation height

while decreases with the increase of the depth of seabed. Based on the concept of volume compression ratio

the bucket foundation with inclined upper section wall and vertical lower section wall is recommended and demonstrated. An accurate method is proposed to determine the proportional coefficient of soil resistance. The results are helpful in the optimization design of traditional bucket foundation.

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