Volume 39 Issue 2
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Li Shuaike, Gan Wenju, Zhang Qingyun. Comparative model study on test of underground diaphragm wall and cross plate joint under transverse bending[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 279-284. doi: 10.20265/j.cnki.issn.1007-2993.2024-0039
Citation: Li Shuaike, Gan Wenju, Zhang Qingyun. Comparative model study on test of underground diaphragm wall and cross plate joint under transverse bending[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 279-284. doi: 10.20265/j.cnki.issn.1007-2993.2024-0039
shu

Comparative model study on test of underground diaphragm wall and cross plate joint under transverse bending

doi: 10.20265/j.cnki.issn.1007-2993.2024-0039

  • School of Civil Engineering and Architecture, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China

  • Received Date: 2024-01-22
  • Accepted Date: 2024-08-29
  • Rev Recd Date: 2024-05-08
    • Available Online: 2025-04-07
  • Publish Date: 2025-04-08
    Abstract
  • Underground diaphragm walls are common support structures for deep foundation pits. With the widespread application of lattice ground connecting walls in port and wharf engineering in recent years, the research significance of its out-of-plane force has become more prominent. The joint section of the underground diaphragm wall, being its weakest part, has been extensively studied under transverse bending. However, there has been less research on its bending behavior under horizontal loads. Model tests were conducted to compare the bending failure process and shape of the ground wall with the non-joint part and the cross-plate joint. Results reveal that the bending bearing capacity of the diaphragm wall with the cross plate joint is low, and the tensile side is prone to cracking. When approaching the ultimate load, brittle failure occurs at the interface between the steel plate and concrete. The phenomenon shows that the cross plate joint should be regarded as hinge point because of its low bending ability outside the plane, and its application range is limited.

     

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