Effect of soil permeability on CPTu test results in structured clay soils

Kateryna Oliynyk, Matteo Oryem Ciantia, Claudio Tamagnini (Lead / Corresponding author)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The PFEM implementation of fully coupled equations governing the solid skeleton deformations and pore fluid flow in porous saturated media is used to investigate the effects of soil permeability on cone tip resistance and excess pore pressure measurements in CPTu tests performed in a structured soil deposit. In the simulations, soil behavior is modeled with the FD_Milan model, a finite deformation version of the isotropic hardening model for structured soil originally developed at the Politecnico of Milano by Nova and coworkers. The results indicate that as soil permeability increases, the volumetric deformations around the cone tip become non negligible and the excess pore pressure in correspondence of the cone probes is also affected. The destructuration process caused by the intense deformations around the cone tip and along the shaft is responsible for a significant reduction of the expected net cone resistance based on the apparent value of the soil undrained strength.

Original languageEnglish
Title of host publicationGeotechnical Engineering in the Digital and Technological Innovation Era
EditorsAlessio Ferrari, Marco Rosone, Maurizio Ziccarelli, Guido Gottardi
Number of pages8
ISBN (Electronic)9783031347610
ISBN (Print)9783031347603, 9783031347634
Publication statusPublished - 2023
EventVIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica: 8th Italian Conference of Researchers in Geotechnical Engineering - Università degli Studi di Palermo, Palermo, Italy
Duration: 5 Jul 20237 Jul 2023

Publication series

NameSpringer Series in Geomechanics and Geoengineering
ISSN (Print)1866-8755
ISSN (Electronic)1866-8763


ConferenceVIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica
Abbreviated titleCNRIG 2023
Internet address


  • CPTu Testing
  • Finite Deformations
  • PFEM Modeling
  • Structured Clays

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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