Publication Abstract

Proceeding of the 2018 DFI-EFFC International Conference on Deep Foundations and Ground Improvement, Rome, Italy, (DFI, EFFC)

Experimental Comparison on Different Pile Load Testing Methods
Gianpiero Russo and Gabriella Marone

The paper presents experimental results of two Osterberg’s cell load tests (OLTs) and three conventional load tests (COLTs) in the same subsoil conditions on similar Continuous Flight Auger (CFA) piles. The instrumentation along the pile shaft in all the tests allows interesting comparisons of both global behavior and local load transfer. Significant differences in the stiffness of the pile-soil system with the different tests procedures are outlined. The main differences between the two test procedures occur at the two opposite ends of the pile while the observed behavior is similar in the middle part of the tested piles. The stiffness of the piles obtained by the two testing procedures are largely different with the OLTs providing by far the stiffest response. As many methods for the settlement predictions of pile groups rely upon the stiffness of the single

 article #2955; publication #1040 (ROME-2018)