Stiffness of Natural and Reconstituted Augusta Clay at Small to Medium Strains

  • Giuseppe Lanzo
  • Alessandro Pagliaroli
Conference paper
Part of the Solid Mechanics and Its Applications book series (SMIA, volume 146)

Abstract

Cyclic simple shear tests were conducted on undisturbed and reconstituted specimens of high-plasticity Augusta clay. Test results were examined in terms of stiffness characteristics either in the small and medium strain range. It has been found that the small-strain shear modulus of natural soil is always higher than that of the reconstituted material. A normalization procedure was proved useful in interpreting the small-strain test results. At larger strain levels, the normalized shear modulus of natural soil showed a steeper decrease with shear strain amplitude with respect to that detected on the reconstituted material, thus evidencing a more marked non-linear behavior. The influence of soil structure was invoked to explain the observed differences.

Keywords

Clay Sedimentation Compressibility Pleistocene 

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Copyright information

© Springer 2007

Authors and Affiliations

  • Giuseppe Lanzo
    • 1
  • Alessandro Pagliaroli
    • 1
  1. 1.Dipartimento di Ingegneria Strutturale e GeotecnicaUniversità di Roma “La Sapienza”RomeItaly

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