EN考虑应变软化效应的海上风力机四桩基础水平承载力预测模型
考虑应变软化效应的海上风力机四桩基础水平承载力预测模型
- 太阳能学报 2025年第11期 页码：730-740
- 作者机构：
- 作者简介：
- 基金信息：国家自然科学基金（52378357）;教育部“春晖计划”合作科研项目（HZKY20220416）;辽宁省教育厅高校基本科研项目（JYTMS20231608）;沈阳市优秀中青年科技人才项目（RC230805）
DOI：doi:10.19912/j.0254-0096.tynxb.2024-1287
中图分类号： U473-
网络出版：2025-12-04，
纸质出版：2025-12-04
- 稿件说明：
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赵子豪, 朱恩林, 余代广, 等. 考虑应变软化效应的海上风力机四桩基础水平承载力预测模型[J]. 太阳能学报, 2025,(11):730-740.
赵子豪, 朱恩林, 余代广, et al. 考虑应变软化效应的海上风力机四桩基础水平承载力预测模型[J]. 2025, (11): 730-740.
赵子豪, 朱恩林, 余代广, 等. 考虑应变软化效应的海上风力机四桩基础水平承载力预测模型[J]. 太阳能学报, 2025,(11):730-740. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1287.
赵子豪, 朱恩林, 余代广, et al. 考虑应变软化效应的海上风力机四桩基础水平承载力预测模型[J]. 2025, (11): 730-740. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1287.
摘要
通过ABAQUS有限元软件
建立四桩基础三维有限元数值模型
并开发VUMAT用户子程序实现软黏土应变软化本构关系
系统研究应变软化参数δrem和ξ95、应变率参数μ、桩间距S、桩长L等关键参数对四桩基础水平极限承载力的影响规律
重点揭示桩群相互作用的主导作用。参数分析表明
水平承载力系数随应变软化参数δrem、ξ95和应变率参数μ的增大而增大
且不同参数对承载力的影响程度存在显著差异。随着桩间距和桩长的增加
桩群相互作用减弱
导致承载力增幅减小
其破坏机制也会发生转变。最后
基于人工神经网络建立考虑多参数影响的四桩基础水平承载力预测模型。
Abstract
A three-dimensional finite element model of a four-pile foundation is established using ABAQUS software
and the strain softening constitutive relationship of soft clay is implemented through a VUMAT user subroutine. This study systematically investigates the influence of key parameters—such as the strain softening parameters and
the strain rate parameter
pile spacing
and pile length —on the horizontal ultimate bearing capacity of a four-pile foundation
with a focus on revealing the dominant role of pile group interaction. Parametric analysis reveals that the horizontal bearing capacity factor increases with the strain softening parameters and and the strain rate parameter
with notable differences in the degree of influence among these parameters. As the pile spacing and pile length increase
the pile group interaction weakens
resulting in a diminishing increase in the bearing capacity and a transition in failure mechanism. Finally
an artificial neural network-based prediction model for the horizontal bearing capacity of the four-pile foundation is established
incorporating the effects of multiple parameters.
关键词
Keywords
references
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