3-D Numerical Study of Mechanical Behaviors of Pile-Anchor System

Ri Cheng Liu; Bang Shu Xu; Bo Li; Yu Jing Jiang

doi:10.4028/www.scientific.net/AMM.580-583.238

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-5833-D Numerical Study of Mechanical Behaviors of...

3-D Numerical Study of Mechanical Behaviors of Pile-Anchor System

Abstract:

Mechanical behaviors of pile-soil effect and anchor-soil effect are significantly important in supporting engineering activities of foundation pit. In this paper, finite difference method (FDM) was utilized to perform the numerical simulation of pile-anchor system, composed of supporting piles and pre-stressed anchor cables. Numerical simulations were on the basis of the foundation pit of Jinan’s West Railway Station, and 3D simulation analysis of foundation pit has been prepared during the whole processes of excavation, supporting and construction. The paper also analyzed the changes of bending moments of piles and axial forces of cables, and discussed mechanical behaviors of pile-anchor system, through comparisons with field monitoring. The results show that the parameters concluding vertical gridding’s number, cohesion of pile and soil, and pile stiffness have robust influences on supporting elements’ behaviors. Mechanical behaviors of supporting pile and axial forces of anchor cable changed dramatically, indicating that the potential failure form was converted from toppling failure to sliding failure.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

238-242

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.238

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Online since:

July 2014

Authors:

Ri Cheng Liu, Bang Shu Xu*, Bo Li, Yu Jing Jiang

Keywords:

FLAC^3D, Numerical Simulation, Pile-Anchor System, Sensitivity Analysis

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* - Corresponding Author

References

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