Nonlinear Finite Element Analysis of Super-Long Pile and Soil Interaction in Soft Soil

Abstract:

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In this paper, a nonlinear three-dimensional finite element model for super-long pile and soil interaction is established. In this model, contact elements are applied to simulate the nonlinear behavior of interaction of super-long pile and soil. A nonlinear elastic constitutive model for concrete is employed to analyze stress-strain relation of pile shaft under the axial load and the Duncan-Chang’s nonlinear constitutive model is used to reflect nonlinear and inelastic properties of soil. The side friction resistance, axial force, pile-tip resistance, and developing trend of soil plastic deformation are obtained and compared with measured results from static load tests. It is demonstrated that a super-long pile has the properties of degradation of side friction resistance and asynchronous action between side and pile-tip resistance, which is different from piles with a short to medium length.

Info:

Periodical:

Advanced Materials Research (Volumes 201-203)

Edited by:

Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang

Pages:

1601-1605

DOI:

10.4028/www.scientific.net/AMR.201-203.1601

Citation:

S. P. Chen et al., "Nonlinear Finite Element Analysis of Super-Long Pile and Soil Interaction in Soft Soil", Advanced Materials Research, Vols. 201-203, pp. 1601-1605, 2011

Online since:

February 2011

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Price:

$35.00

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