Comparison Between Theoretical and Observed Behaviour of Pile Foundations

摘要

The paper describes a number of case studies in which the deformation behaviour of single piles or pile groups has been calculated theoretically and compared with the observed behaviour. The cases include: the settlement of two grout-injected test piles in sand, for which 'Class A' (before the event) predictions were made, the settlement of steel pipe piles and step-taper piles in a soil profile consisting of clay overlying dense sand, the lateral response of two test piles, the predictions being based on pressuremeter data, the lateral load-deflection behaviour of pile groups tested in Rumania, and the settlement of a large office block founded on rock-socketted piles. In the last two cases, the results of tests on single piles have been used to predict group behaviour.