https://hal-enpc.archives-ouvertes.fr/hal-01126826Burlon, S.S.BurlonFrank, RogerRogerFrankcermes - Géotechnique - navier umr 8205 - Laboratoire Navier - IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche ScientifiqueBaguelin, F.F.BaguelinFondasolHabert, J.J.HabertLegrand, S.S.LegrandModel factor for the bearing capacity of piles from pressuremeter test results – Eurocode 7 approachHAL CCSD2014bearing capacityfootings/foundationspilesin situ testingsite investigationstatistical analysisstandards[PHYS.MECA.MSMECA] Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph]Frank, Roger2015-03-06 21:05:432022-01-15 03:50:122015-03-06 21:05:43enJournal articles10.1680/geot.13.P.0611This paper focuses on the establishment of a model factor for the calculation of the ultimate limit state (ULS) bearing capacity of piles in compression from Ménard pressuremeter tests results. First, the requirements of Eurocode 7 are presented: calculation methods used for pile foundations must be validated against the results of static load tests and a model factor can be introduced to reach a target safety. This model factor is meant to take into account the scatter of the calculation model, whereas the spatial variability of the ground properties is dealt with by means of statistical methods. Then an analysis of a database of 174 full-scale static pile load tests carried out by the Laboratoire Central des Ponts et Chausées (LCPC, now called IFSTTAR), over the last 40 years, mainly in France, is performed and a new calculation model is established based on pressuremeter test results. Finally, the calibration procedure for deriving the model factor used in the recent French standard for pile design following Eurocode 7 is explained using two approaches: one compares the dispersions of the former and new calculation models and the other performs statistical analysis combining the scatter of the calculation model and the spatial variability of ground properties. This model factor is introduced into the recent French standard for pile design following Eurocode 7.