Field investigation of the effect of installation method on the shaft resistance of piles in clay

Kenneth Gavin, David Gallagher, Paul Doherty, Bryan McCabe

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

Abstract

This paper presents the results of a series of field experiments performed to study the effect of installation method on the shaft resistance developed by a pile installed in soft clayey silt. Tests were performed on piles that experienced different levels of cyclic loading during installation. The test results indicate that the radial total stress, pore-water pressure, and shear stress on the pile shaft during installation were strongly affected by the installation procedure; all three were found to increase when the jacking stroke length used during installation increased (or the number of cyclic load applications decreased). However, equalized radial effective stresses that control the long-term pile shaft capacity were found to be insensitive to the installation method. A simple expression that requires the results of a cone penetration test, laboratory measurements of the interface friction angle, and the pile geometry is proposed to calculate the shaft resistance.

Original languageEnglish
Pages (from-to)730-741
Number of pages12
JournalCanadian Geotechnical Journal
Volume47
Issue number7
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • Clay
  • Field tests
  • Piles
  • Shaft resistance

Fingerprint Dive into the research topics of 'Field investigation of the effect of installation method on the shaft resistance of piles in clay'. Together they form a unique fingerprint.

Cite this