土工基础

土工基础 ›› 2019, Vol. 33 ›› Issue (6): 713-716.

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抗浮锚杆现场试验及数值模拟分析研究

随着城市建设的发展，地下空间应用越来越广，地下建（构）筑物的抗浮问题变得越发明显，特别是地下水位较高的区域，抗浮稳定性对结构安全产生的影响日益突出。对抗浮锚杆的作用机理及破坏形式进行阐述，通过现场试验及借助ABAQUS建立三维有限元模型分析探讨了抗浮锚杆受力变形特性，进一步揭示了抗浮锚杆的工作机理，得到一些有用的结论，对今后抗浮锚杆的设计和施工具有一定的指导意义。   

  1. （1.福建省建筑科学研究院有限责任公司，福州 350108；2.福建省绿色建筑技术重点实验室，福州 350108；
    3.福州大学岩土工程研究所，福州 350108；4.福建农林大学交通与土木工程学院，福州 350108；
    5.福州外语外贸学院，福州 350202）
  • 收稿日期:2019-03-25 修回日期:2019-03-29 出版日期:2019-12-28 发布日期:2019-12-28
  • 作者简介:邱志华（1990-），男，硕士研究生，工程师，研究方向为岩土工程。

Field Tests and Numerical Analysis of Anti-Buoyancy Anchors

With the development of urban construction, the utilization of underground spaces becomes more and more popular, and the buoyance concerns of underground buildings and structures becomes increasing urgent. Especially in areas with high groundwater level, the impact of antifloating stability on the structural safety is also increasingly prominent. In this paper, the mechanism and failure modes of antifloating anchors are evaluated. The mechanical and deformation characteristics of antifloating anchors are discussed by field tests and the threedimensional finite element model throughout commercial software ABAQUS. The mechanism of the antifloating anchor is revealed, and practical conclusions are also provided in the paper.   

  1. (1.Fujian Building Research Institute Co., Ltd., Fuzhou 350108, China;
    2.Fujian Key Laboratory of Green Building Technology, Fuzhou 350108, China;
    3.Institute of Geotechnical Engineering, Fuzhou University, Fuzhou 350108, China;
    4.College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China;
    5.Fuzhou University of International Studies and Trade, Fuzhou 350202, China)
  • Received:2019-03-25 Revised:2019-03-29 Online:2019-12-28 Published:2019-12-28

摘要： 随着城市建设的发展，地下空间应用越来越广，地下建（构）筑物的抗浮问题变得越发明显，特别是地下水位较高的区域，抗浮稳定性对结构安全产生的影响日益突出。对抗浮锚杆的作用机理及破坏形式进行阐述，通过现场试验及借助ABAQUS建立三维有限元模型分析探讨了抗浮锚杆受力变形特性，进一步揭示了抗浮锚杆的工作机理，得到一些有用的结论，对今后抗浮锚杆的设计和施工具有一定的指导意义。

关键词: 抗浮锚杆, 现场试验, 受力机理, ABAQUS

Abstract: With the development of urban construction, the utilization of underground spaces becomes more and more popular, and the buoyance concerns of underground buildings and structures becomes increasing urgent. Especially in areas with high groundwater level, the impact of antifloating stability on the structural safety is also increasingly prominent. In this paper, the mechanism and failure modes of antifloating anchors are evaluated. The mechanical and deformation characteristics of antifloating anchors are discussed by field tests and the threedimensional finite element model throughout commercial software ABAQUS. The mechanism of the antifloating anchor is revealed, and practical conclusions are also provided in the paper.

Key words: AntiBuoyancy Anchors, Field Tests, Stress-Strain Relationships, ABAQUS

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