Behaviour of axially loaded pile groups driven in clayey silt

A.B. Mccabe, Barry Lehane

    Research output: Contribution to journalArticle

    64 Citations (Scopus)

    Abstract

    This paper presents a case history describing measurements made during the installation and load testing of groups of five, closely spaced, precast concrete piles in a soft clay-silt. The test results extend the presently limited set of reported high-quality data for pile groups at field scale and allow assessment of the reliability of existing numerical and analytical predictive approaches. Full scale maintained compression and tension load tests on groups as well as tests on single (reference) piles and an individual test on a pile within a pile group enable the effects of multiple pile installations and interaction between piles under load to be assessed. The results are compared with existing simple methods of pile group analysis and with other case histories reporting results on small pile groups. A simple expression to evaluate pile group stiffness efficiency is proposed.
    Original languageEnglish
    Pages (from-to)401-410
    JournalJournal of Geotechnical and Geoenvironmental Engineering
    Volume132
    Issue number3
    DOIs
    Publication statusPublished - 2006

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