The influence of age and soil type on Cyclic Resistance Ratio (CRR) and normalized small strain shear wave velocity has been examined here using cyclic laboratory tests on frozen and high-quality undisturbed specimens of Pleistocene and Holocene non-cohesive soils comprised of silt to pebble size particles and in-situ shear wave velocity measurements. These data indicate that the relationships between normalized shear wave velocity and the CRR for Holocene deposits may not be remarkably different from the corresponding relationships for Pleistocene soils. This inference contradicts the general experience that Pleistocene deposits are remarkably more resistant to earthquake-related liquefaction. However, the relationship between the laboratory-based CRR and the normalized shear wave velocity was found to be consistent with observations of field-performance of non cohesive deposits during earthquakes although there was a considerable uncertainty in this regard.
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