桥头软基典型性病害分析探讨
作者:
作者单位:

(1.珠海十字门中央商务区建设控股有限公司,广东 珠海 519000; 2.南京水科院瑞迪科技集团有限公司,江苏 南京 210029;3.河海大学,江苏 南京 210000)

作者简介:

于海洋(1985—), 男, 硕士, 工程师, 从事土木工程项目管理工作。

通讯作者:

中图分类号:

TU447

基金项目:


Analysis and Discussion of Typical Soft Foundation Diseases at Bridgehead
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    软基桥头病害在道路工程中十分普遍。在工程建设期,软基处治方式的不当往往导致运营期各种病害的不断产生,造成运营维护成本大,同时病害难以根除。现以珠海地区运营通车六年多的某桥桥头段工程处治为例,通过现场测量、勘察、地基检测、室内试验及数值模拟等手段,全面分析了桥头段病害发展的程度和发生的根源。分析结果表明:此处桥头软基段总体沉降大,沉降不均匀显著,下伏软土层物理力学性质运营期内未有改善,其层内的PHC管桩存在断桩、错位、倾斜现象,路基实测沉降量超过设计理论计算沉降量,路基存在严重侧向位移。

    Abstract:

    Soft foundation bridgehead diseases are very common in road engineering. The improper treatment of soft foundation in the construction period often leads to the continuous occurrence of various diseases in the operation period and causes the high maintenance costs. And also it is difficult to eradicate the diseases. Taking the treatment of a bridgehead project in Zhuhai, which has been open to traffic for more than six years as an example, by the means of field measurement, survey, foundation detection, laboratory test and numerical simulation, the development degree and causes of bridgehead diseases are comprehensively analysed. The analysis results show that the overall settlement of the soft foundation section at the bridgehead is large and the settlement is uneven and significant. The physical and mechanical properties of the underlying soft soil layer have not been improved during the operation period. The PHC pipe piles in the layers are broken, dislocated and inclined. The measured settlement of subgrade exceeds the settlement calculated by the design theory, and the subgrade has serious lateral displacement.

    参考文献
    相似文献
    引证文献
引用本文

于海洋,邵 帅,罗 磊,周瑞平,孙宇庭.桥头软基典型性病害分析探讨[J].城市道桥与防洪,2024,(5):121-126.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2023-05-30
  • 最后修改日期:2023-06-19
  • 录用日期:2023-07-26
  • 在线发布日期: 2024-05-21
  • 出版日期:
关闭