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Variability of physical and mechanical properties of varved clays of Warsaw ice-dammed lake in light of in situ tests
The publication presents an analysis of variability of physical and mechanical properties of Warsaw ice-dammed deposits. In this study, the engineering geological properties were correlated with the lithogenetic types of varved clays representing sedimentary zones of glaciolacustrine lake. The advanced tools for in situ soil characteristics were used. The research programme focused on the glaciolacustrine varved clays formed during the Last Glaciation (Vistulian). With the use of innovative, non-conventional methods, the stress state was verified and anisotropy of selected mechanical characteristics was determined. A comprehensive data set covers various parameters. It is the basis for establishing representative values of the studied soils taking into account their facial differentiation.
Keywords: varved clays, Warsaw ice-dammed lake, mechanical parameters, anisotropy, electrical resistivity, permeability, coefficient of earth pressure at rest K0, cone penetration test CPT/CPTu, seismic test SCPT, Marchetti dilatometer, Menard pressuremeter.