Shaft friction of CFA piles in chalk

CIRIA and members of the Federation of Piling Specialists (FPS) collaborated in instituting this research 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 and 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. It contains the graphical plots and analyses of pile test data and reviews some design aspects of CFA piles in chalk.