Numerical Analysis on the Bearing Capacity of Single Pile in Deep Excavation Area

Jun Jie Wu; Jin Jian Chen; Shuai Jun Liu; Jian Hua Wang

doi:10.4028/www.scientific.net/AMR.671-674.226

Paper Titles

Dynamic Response Analysis of Compaction Loess Subgrade
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Effect Analysis on Foundation Pit Excavation Adjacent to Existing Railway
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Environmental Vibration Analysis Induced by Subway Trains Running in Overlapping Shield Tunnels
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Influence of Slope Thickness and Soil Porosity on the Failure Mechanism of Reduced-Scale Slope Models
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Numerical Analysis on the Bearing Capacity of Single Pile in Deep Excavation Area
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Numerical Simulation on Supporting of Deep Surrounding Rock with Zonal Disintegration Tendency
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Parameter Optimization Design of Soil Nail Supporting to Deep Foundation Pits
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Reliability Analysis of Foundation Pit Based on Response Surface of Support Vector Machine
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Research on 2D Limit Equilibrium Method of Slopes Considering the Effect of Horizontal In Situ Stress
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 671-674Numerical Analysis on the Bearing Capacity of...

Numerical Analysis on the Bearing Capacity of Single Pile in Deep Excavation Area

Abstract:

Large-scale deep excavation may affect the bearing capacity of piles inside the excavation zone. It does not only cause the loss of friction, but also change the stress state of the subsoil. In this paper, nonlinear finite element technique is employed to investigate the bearing capacity of piles influenced by the deep excavation. Parameters of soil are obtained by back analysis on the pile static load test results. The bearing capacity of the piles during excavation is analyzed by performing FEM modeling under three conditions using the calibrated parameters. The numerical study shows that the loss ratio of vertical bearing capacity of pile foundation caused by excavation unloading is 34%.

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Periodical:

Advanced Materials Research (Volumes 671-674)

Pages:

226-229

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.671-674.226

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Online since:

March 2013

Authors:

Jun Jie Wu, Jin Jian Chen, Shuai Jun Liu, Jian Hua Wang

Keywords:

Bearing Capacity, Excavation Unloading, FEM Model, Pile

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References

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