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The measurement of undrained cohesion in normally consolidated lacustrine clays

  • Cancelli A. 
26e Congrès Géologique International Paris, France, 7–17.07.1980
  • 114 Downloads

Summary

Geotechnical investigations have been carried out on normally consolidated slit clay deposits, resulting from the drying up of a Plio-Pleistocenic lake in Central Italy. In situ investigations included borings (with SPT and vane tests) and static cone penetration tests; undrained cohesion has been also measured by means of consolidated, drained triaxial tests.

The data collected allows a comparison to be made between the values of cu obtained from different tests; the validity of some relationships between cu and the consolidation pressure is also verified.

Keywords

Triaxial Test Overburden Pressure Standard Penetration Test Geotechnical Investigation Consolidation Pressure 

La mesure de la cohesion non drainee dans des argiles lacustres normalement consolidees

Résumé

On a conduit des recherches géotechniques sur des dépôts argileuses et limoneuses normalement consolidés dérivant par l'épuisement d'un lac plio-pleïstocénique dans l'Italie centrale. Les investigations en place ont compris des sondages (avec des essais SPT et scissométriques) et des essais de pénétration à l'aide d'un pénétromètre hollandais; en outre, la cohésion non drainée a été mesurée par des essais triaxiaux sans consolidation et sans drainage. L'ensemble des mesures permet de comparer entre elles les valeurs de cu obtenues par des essais différentes; la validité de quelques corrélations entre cu et la pression de consolidation est aussi verifiée.

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Copyright information

© International Assocaition of Engineering Geology 1981

Authors and Affiliations

  • Cancelli A. 
    • 1
  1. 1.Geotechnical Section, Department of Structural EngineeringTechnical UniversityMilanItaly

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