张 磊,林红星,刘建波,孙婉静.海中筑岛柔性组合围堰结构受力与变形特性*[J].水运工程,2024,(11):202-208
海中筑岛柔性组合围堰结构受力与变形特性*
Stress and deformation characteristics of flexible composite cofferdam structure for building islands in sea
  
DOI:
中文关键词:  :flexible composite cofferdam  numerical analysis  building islands in sea  parallel steel wire cable  field monitoring
英文关键词:
基金项目:山东省重点研发计划项目(2021ZLGX04)
作者单位
张 磊 中交第二航务工程局有限公司湖北 武汉 430040长大桥梁建设施工技术交通行业重点实验室湖北 武汉 430040交通运输行业交通基础设施智能制造技术研发中心湖北 武汉 430040中交公路长大桥建设国家工程研究中心有限公司北京 100120 
林红星  
刘建波  
孙婉静  
摘要点击次数: 44
全文下载次数: 0
中文摘要:
      The construction of offshore platform structure has long period and high cost in the construction of diaphragm wall in sea.To solve the problem,the combined cofferdam of locking steel pipe pile and I-shaped sheet pile is used to built islands in the sea,and the parallel steel wire cable is set outside the cofferdam for flexible restraint,forming a flexible composite cofferdam structure of “lock steel pipe pile+I-shaped sheet pile+parallel steel wire cable” in the sea.Compared with traditional rigid hoop and the non-hoop composite cofferdam structure,based on field monitoring data,stress and deformation characteristics of the proposed flexible hoop composite cofferdam structure are analyzed.The results show that compared with the conventional rigid hoop structure,the maximum bending moment of the pile in the flexible hoop structure is reduced by about 50% under the same dredger fill pressure load.The maximum horizontal displacement of the pile top is too large without the hoop structure.Under the action of uneven loading,the stress of the rigid hoop will change abruptly,while the flexible hoop is always tensioned and the stress is evenly distributed.The monitoring results show that the measured stress and deformation of the flexible composite cofferdam structure are in good agreement with the calculation.
英文摘要:
      柔性组合围堰;数值分析;海中筑岛;平行钢丝索;现场监测
查看全文  查看/发表评论  下载PDF阅读器
关闭