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Nunziante Squeglia, Lo Presti Diego, Barbara Cosanti

WORKSHOP ON PENETRATION TESTING 9 OCTOBER 2014 AUDITIORIUM OPERA PRIMAZIALE. Re – evaluation of classification charts for CPTU in partially saturated loose silt mixtures. Nunziante Squeglia, Lo Presti Diego, Barbara Cosanti. UNIVERSITA ’ DI PISA

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Nunziante Squeglia, Lo Presti Diego, Barbara Cosanti

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  1. WORKSHOP ON PENETRATION TESTING 9 OCTOBER 2014 AUDITIORIUM OPERA PRIMAZIALE Re – evaluation of classification charts for CPTU in partially saturated loose silt mixtures Nunziante Squeglia, Lo Presti Diego, Barbara Cosanti UNIVERSITA’ DI PISA Dipartimento di Ingegneria dell’Energia, dei Sistemi del Territorio e delle Costruzioni squeglia@ing.unipi.it

  2. MOTIVATIONS SBT CLASSIFICATION CHARTS DO NOT CORRECTLY WORK IN CASE OF: PARTIALLY SATURATED SOILS LOOSE SILT MIXTURES

  3. PARTIALLY SATURATED SOILS EXAMPLE BRONI (PV) SITE Fine grained soil

  4. POSSIBLE CORRECTION EVALUATE SUCTION and CORRECT EFFECTIVE STRESS ADOPTED MODEL MK – KOVACS (Aubertin et al., 2003) granular soil f(D10, CU) fine soil f(LL)

  5. EFFECT OF CORRECTION (Ic): - BRONI

  6. ROBERTSON & CAMPANELLA (1986)ROBERTSON (1990)

  7. EFFECT OF CORRECTION (SBT): BRONI

  8. EFFECT OF CORRECTION (SBT): BRONI

  9. LOOSE SILTY MIXTURES: Qc < 1 MPa

  10. SERCHIO RIVER EMBANKMENTS

  11. Ic FROM BOREHOLES VS. Ic FROM CPTU

  12. Ic FROM BOREHOLES & CPTU

  13. EFFECT OF CORRECTION

  14. EFFECT OF CORRECTION

  15. HOW TO DISTINGUISH LOOSE SILT MIXTURES FROM COMPRESSIBLE CLAYS ETC. COMPRESSIBLE CLAYS, PEATS, ETC. CAN HAVE qc < 1 MPa MAY FR GIVE USEFUL INDICATIONS? FRICTION RATIO < 4?

  16. COMPRESSIBLE CLAYS: PISA EST

  17. COMPRESSIBLE CLAYS: PISA WEST

  18. COMPRESSIBLE CLAYS: PISA DISTRICT

  19. COMPRESSIBLE CLAYS: LIVORNO DISTRICT

  20. COMPRESSIBLE CLAYS: LUCCA DISTRICT

  21. COMPRESSIBLE CLAYS: PRATO DISTRICT

  22. EFFECT OF SLEEVE DIAMETER (HOSKIN ET AL., 2014)(NZ - SANDS)

  23. ACKNOWLEDGEMENTS CPT DATA IN TUSCANY HAVE BEEN PROVIDED BY GEOSERVIZI (COSCO & SPADARO) CPT INTERPRETATION HAS BEEN CARRIED OUT BY SCARDIGLI & ZACCAGNINO (UNDERGRADUATER STUDENTS) CPT DATA FROM BRONI HAVE BEEN GIVEN BY PAGANI AND DR. MEISINA (UNIPV) CPT INTERPRETATION OF BRONI DATA HAS BEEN CARRIED OUT BY ROSIGNOLI (GRADUATE STUDENT)

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