This paper presents the ‘load-transfer functions’ t-z and p-y methods for determining the axial and lateral displacements of single piles. They are based on the results of pressuremeter tests. The methods from the results of the Ménard pre-borehole pressuremeter tests (MPM) and the self-boring pressuremeter tests (PAF, for Pressiomètre AutoForeur in French) are described. Especially, the t-z and p-y methods derived from the MPM test results are commonly used in the French practice. For both t-z and p-y curves, some theoretical background (usually FEM calculations in linear elasticity) is given. The results of the t-z and p-y analyses are compared to the measurements from loading tests on full scale piles. A proposal concerning barrettes is also presented.

Keywords: Pile, Displacement, Settlement, Lateral behaviour, Menard pre-borehole pressuremeter, Self-boring pressuremeter, Barrette,

Submitted on July 10, 2022.
Final Acceptance on August 05, 2022.
Discussion open until September 18, 2022.
DOI: 10.28927/SR.2022.006822