Physical model testing and FE analyses of base resistance of bored piles in sand

D. Cadogan, K. Gavin, A. Tolooiyan

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

Research efforts have improved estimates of the ultimate base resistance of driven piles in sand. These techniques often estimate the base resistance at relatively large displacements, typically 10% of pile diameter, q b0.1. Cone Penetration Test (CPT) design methods typically link q b0.1 and qc through a constant reduction factor, α. Although α factors for bored piles have been proposed, some authors argue α is constant and others that it varies with footing width and depth. This paper describes the results of model tests performed using instrumented piles installed in dense sand. Numerical analyses were performed using soil profiles that were calibrated using the results of the CPT tests at the site, and used to perform parametric analyses to investigate scale effects. Results imply a direct correlation between q b0.1 and qc, independent of pile diameter and length, suggesting model-scale testing as an ideal approach for investigating the pressure-settlement response of field-scale piles.

Original languageEnglish
Title of host publicationPhysical Modelling in Geotechnics - Proceedings of the 7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010
Pages739-744
Number of pages6
Volume2
Publication statusPublished - 2010
Externally publishedYes
Event7th International Conference on Physical Modelling in Geotechnics 2010 - Leiden, Zurich, Switzerland
Duration: 28 Jun 20101 Jul 2010

Conference

Conference7th International Conference on Physical Modelling in Geotechnics 2010
Abbreviated titleICPMG 2010
CountrySwitzerland
CityZurich
Period28/06/101/07/10

Fingerprint

Dive into the research topics of 'Physical model testing and FE analyses of base resistance of bored piles in sand'. Together they form a unique fingerprint.

Cite this