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Shaft friction of CFA piles in chalk (PR86)

CIRIA and member firms of the Federation of Piling Specialists (FPS) collaborated in instituting this research, in order to:

  • obtain and analyse new CFA pile test results in chalk
  • re-examine the pile test data available at the time PR11 was written
  • review whether the published value of b is conservative
  • explore the factors that affect it
  • refine design recommendations.

    This book makes recommendations for the design of shaft resistance of CFA piles in low- and medium- density chalk. It is not appropriate to the design of piles constructed by any other method.The report contains the graphical plots and analyses of pile test data and reviews some design aspects of continuous flight augered piles in chalk.

    Key words: ground engineering, piling, ground investigation and characterisation, soil-structure interaction.

    ISBN: 978-0-86017-886-6
    Author: A Lord, T Hayward, C R I Clayton
    Number of pages: 52 (paperback)
    Publisher: CIRIA
    Date of Publication: March 2003