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Deformation Analysis of Micro Steel Pipe Pile Supporting Structure Considering Double Stiffness Model

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DOI: 10.23977/jemm.2023.080202 | Downloads: 12 | Views: 405

Author(s)

Zhengxu Chen 1, Baoping Wang 1, Tong Wang 1, Zongxing Jiang 1

Affiliation(s)

1 Gansu CSCEC Municipal Engineering Investigation and Design Institute Co., Ltd, Lanzhou, 730000, China

Corresponding Author

Zhengxu Chen

ABSTRACT

On the basis of previous studies, this paper explains the working stress characteristics of micro steel pipe pile supporting structure, and puts forward a deformation calculation method considering anchor cable prestress. The working mechanism and mechanical properties of micro steel pipe pile supporting structure are expounded. A double stiffness calculation model considering anchor cable prestress is established, and the deformation calculation method of micro steel pipe pile supporting structure based on double stiffness model is deduced. The stiffness of the anchor cable obtained by this calculation method is smaller than that obtained by the current specification, thus increasing the size of the designed supporting structure and making the actual project safer.

KEYWORDS

Foundation Pit Engineering, Micro Steel Tube Pile, Internal Force and Deformation

CITE THIS PAPER

Zhengxu Chen, Baoping Wang, Tong Wang, Zongxing Jiang, Deformation Analysis of Micro Steel Pipe Pile Supporting Structure Considering Double Stiffness Model. Journal of Engineering Mechanics and Machinery (2023) Vol. 8: 12-24. DOI: http://dx.doi.org/10.23977/jemm.2023.080202.

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