DBPapers
DOI: 10.5593/SGEM2016/B13/S02.010

DETERMINATION OF THE SMALL STRAIN STIFFNESS OF SELECTED COHESIVE SOILS FROM WARSAW, POLAND

K. Markowska-Lech, W. Sas, K. Gabrys, M. Bajda, M. Lech
Tuesday 6 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-57-5 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 3, 77-84 pp

ABSTRACT
The small-strain stiffness of soils is required in the advanced numerical analyses of
geotechnical engineering problems. The shear modulus at small-strain (G0) is one of the input parameters in a finite element analysis with the hardening soil model with smallstrain stiffness. The small-strain stiffness can be determined based on the seismic wave velocities measured in the laboratory and field tests. The equipment, procedures, tests results and interpretation analyses of bender elements (BE) and resonant column (RC) as well as SCPTU tests performed on natural overconsolidated cohesive soils from Warsaw, Poland are presented. The studies have shown that the values of shear modulus at small strain (G0) obtained using bender elements (BE) and resonant column (RC) techniques are similar, whereas those measured by the SCPTU are significantly higher.

KEYWORDS: small strain stiffness, bender elements, resonant column, SCPTU, clays