This paper illustrates the use of the seismic dilatometer (SDMT) to assess the decay of in-situ stiffness with strain level in different soil types. The approach adopted in this study relies on the ability of the SDMT to provide routinely at each test depth both a small strain stiffness (G0 from VS) and a working strain stiffness (constrained modulus MDMT derived from the usual DMT interpretation). At various test sites, working strain DMT moduli are compared with reference stiffness decay curves back-figured from (i) the behavior observed under a full-scale test embankment (at Treporti) or footings (in Texas), (ii) from laboratory tests (at L’Aquila, Fucino plain and Po plain) and (iii) various combinations of insitu and laboratory testing techniques (Western Australia). Typical ranges of the shear strains DMT associated with working strain DMT moduli are inferred to assist construction of stiffness - strain decay curves for different soil types.

Examination of the potential of the seismic dilatometer (SDMT) to estimate in situ stiffness decay curves in various soil types

Amoroso S.
;
2014

Abstract

This paper illustrates the use of the seismic dilatometer (SDMT) to assess the decay of in-situ stiffness with strain level in different soil types. The approach adopted in this study relies on the ability of the SDMT to provide routinely at each test depth both a small strain stiffness (G0 from VS) and a working strain stiffness (constrained modulus MDMT derived from the usual DMT interpretation). At various test sites, working strain DMT moduli are compared with reference stiffness decay curves back-figured from (i) the behavior observed under a full-scale test embankment (at Treporti) or footings (in Texas), (ii) from laboratory tests (at L’Aquila, Fucino plain and Po plain) and (iii) various combinations of insitu and laboratory testing techniques (Western Australia). Typical ranges of the shear strains DMT associated with working strain DMT moduli are inferred to assist construction of stiffness - strain decay curves for different soil types.
File in questo prodotto:
File Dimensione Formato  
SR37-3_177-194.pdf

Solo gestori archivio

Descrizione: Articolo principale
Tipologia: PDF editoriale
Dimensione 3.82 MB
Formato Adobe PDF
3.82 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11564/707162
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? ND
social impact