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Volume 44 Issue S1
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RAO Qiu-chen, LI Qi, WANG Qian. Supporting characteristics of segmental diaphragm walls in strip foundation pits under spatial effects[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 104-108. DOI: 10.11779/CJGE2022S1019
Citation: RAO Qiu-chen, LI Qi, WANG Qian. Supporting characteristics of segmental diaphragm walls in strip foundation pits under spatial effects[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 104-108. DOI: 10.11779/CJGE2022S1019
shu

Supporting characteristics of segmental diaphragm walls in strip foundation pits under spatial effects

  • Huadong Engineering Corporation Limited, China Power Engineering Consulting Group Corporation, Hangzhou 311100, China

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  • Received Date: September 22, 2022
  • Available Online: February 06, 2023
    Graphical Abstract
    • Abstract
  • Based on the foundation pit project of West Wenyi Road Tunnel in Hangzhou, the supporting characteristics and effects of segmental diaphragm walls in strip foundation pits are investigated by using the finite element analysis method. The results show that the horizontal deformation of the diaphragm walls in different sections exhibits a drum belly distribution law, and the maximum horizontal deformation decreases with the increase of the buried depth of the diaphragm walls. The settlement law of the surface soil near the diaphragm walls in different sections is basically the same, with a concave curve distribution. The buried depth of the diaphragm walls only affects the settlement value, but does not affect its distribution law. If the segmental diaphragm walls with different depths are set at the long side of the strip foundation pit, the surface settlement and horizontal deformation of the diaphragm walls can still meet the engineering safety requirements and have certain economic benefits.
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