Axial resistance of CFA piles in Dublin Boulder Clay

Kenneth Gavin, David Cadogan, Lloyd Twomey

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Abstract

This paper describes the results of static compression and tension load tests performed on three-instrumented large-diameter continuous flight auger piles installed in Dublin Boulder Clay. The piles developed very high shaft resistance and, in contrast to piles driven into Boulder Clay that exhibit friction fatigue, the shaft distribution was uniform along the pile shaft. This resulted in the normalised average shear resistance being mobilised by a bored pile exceeding that of a pile driven in similar ground conditions. In contrast, the base resistance of the test piles was significantly lower than that of a pile driven in similar ground conditions.

Original languageEnglish
Pages (from-to)171-180
Number of pages10
JournalProceedings of the Institution of Civil Engineers - Geotechnical Engineering
Volume161
Issue number4
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Field testing & monitoring
  • Foundations
  • Piles & piling

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