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Study on the influence of deep foundation pit excavation on the deformation of adjacent viaduct pile foundation

Author

Listed:
  • Haitao Wang
  • Mingyang Xu
  • Tao Guo
  • Minghua Cui
  • Jiangtao Tian

Abstract

In order to study the influence of deep foundation pit excavation on the deformation of adjacent viaduct pile foundation in water-rich karst environment, a three-dimensional finite element analysis model was established, and the dewatering process of deep foundation pit was simulated. The results show that with the increasing of pile depth, the horizontal displacement of pile foundation is larger at the top and smaller at the bottom. The dewatering of deep foundation pit has influence on the bending moment and axial force of adjacent viaduct pile foundation, but they are in a relatively safe range. The horizontal displacement of bridge pile is negatively correlated with the distance between bridge pile and deep foundation pit, the supporting stiffness of deep foundation pit and the elastic modulus of the first layer soil.

Suggested Citation

  • Haitao Wang & Mingyang Xu & Tao Guo & Minghua Cui & Jiangtao Tian, 2024. "Study on the influence of deep foundation pit excavation on the deformation of adjacent viaduct pile foundation," International Journal of Critical Infrastructures, Inderscience Enterprises Ltd, vol. 20(3), pages 288-307.
    • Handle: RePEc:ids:ijcist:v:20:y:2024:i:3:p:288-307
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