This paper presents the analysis of results of static pile load testing for determining the axial capacity of pile foundation carried out in graphitic schists. While multiple tests have been made on the pile foundations of the viaducts, this paper will only present the process of pile load testing carried out on a single pile, with a length of 16 m and diameter of Ø1200 mm, whereas the analytically estimated load capacity is set to 9 MN. A unique steel platform as reactive system has been designed in order to provide a counter load for the downward forces applied during testing. The results show that the deformations of the pile under the effect of the designed loads are minor in comparison to the allowable ones foreseen in the design. In order to model the ultimate bearing capacity of the pile foundation, numerical modeling has been made by calibrating the model for the loads applied during the test and an assessment of the ultimate axial capacity of the pile.

DOI: https://doi.org/10.55302/SJCE2211207a