摘要
为探究固化土加固对于海上风电大直径单桩基础水平承载特性的影响,以江苏如东H4#海上风电场工程为背景建立了固化土加固海上风电大直径单桩基础的有限元计算模型,研究了固化土加固前后单桩基础的水平承载特性,分析了固化土强度参数对单桩基础水平承载特性的影响。研究结果表明:利用固化土加固单桩基础可显著改善桩基的水平承载特性,桩基的水平承载力可提高147%;桩身位移对于固化土粘聚力的变化较敏感,内摩擦角的变化对于桩身位移的影响则较低。
In order to explore the influence of the solidified soil reinforcement on the horizontal bearing characteristics of the large-diameter monopile foundation of the offshore wind farm,a finite element model of a large-diameter monopile foundation reinforced by the solidified soil based on H4#offshore wind farm project in Rudong County was established.The horizontal bearing characteristics of monopile foundation before and after solidified soil reinforcement was studied,and the influence of strength parameters of the solidified soil on the horizontal bearing characteristics of monopile foundation was analyzed.The results show that using the solidified soil to strengthen the monopile foundation can significantly improve the horizontal bearing characteristics of the pile foundation,and the horizontal bearing capacity of the pile foundation can increase by 147%.The displacement of the pile body is more sensitive to the change of cohesion of the solidified soil,and the change of internal friction angle has less effect on the displacement of the pile body.
作者
沈晓雷
郭健
张海涛
罗先启
SHEN Xiao-lei;GUO Jian;ZHANG Hai-tao;LUO Xian-qi(PowerChina Huadong Engineering Co.Ltd.,Hangzhou 311122,China;Zhejiang East China Engineering Consulting Co.Ltd.,Hangzhou 311122,China;School of Civil Engineering,Tsinghua University,Beijing 100084,China;Key Laboratory of Urban Security and Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100124,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《水道港口》
2023年第1期118-123,共6页
Journal of Waterway and Harbor
基金
国家重点研发计划项目(2016YFC0401908)
北京工业大学教育部重点实验室开放基金(2022B06)。
关键词
海上风电
单桩基础
固化土
承载特性
offshore wind power
monopile foundation
solidified soil
bearing characteristic
