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Chapter
Mar 17, 2015

Group Effects on Piles Behavior under Lateral Loading

Abstract

In this study, behavior of a 3×3 pile group under lateral loading in sand is investigated by means of numerical modeling. A three-dimensional finite element model was developed using the ABAQUS software to simulate the behavior of steel pipe piles and soil. In this model, the behavior of the soil is described using an elastic-plastic constitutive model while the piles were treated as elastic materials. P-multipliers were developed for each row of the pile groups. Values of 0.78, 0.40, and 0.38 were calculated for a 3×3 free-headed pile group with 3D spacing in the both directions. Piles spacing and piles head conditions effects on the group interaction and consequently p-multipliers have been studied. It has been resulted that piles spacing in a group is an important parameter affecting the piles behavior under lateral loading, however, the piles head condition does not have a considerable effect on the values of p-multipliers.

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Go to IFCEE 2015
IFCEE 2015
Pages: 1142 - 1151

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Published online: Mar 17, 2015

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Pooya Allahverdizadeh [email protected]
S.M.ASCE
Ph.D. Candidate, Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO. E-mail: [email protected]

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