Abstract
Obtaining good samples from loose sand layers within bay areas are necessary to evaluate their deformation and liquefaction properties. Until now, high-quality sampling in the loose sandy ground are achieved by applying an expensive in-situ freezing technique. In order to find an alternative and cost-effective sampling method applicable to these loose alluvial deposits, sand samples were collected in this study from Kobe Bay area by using two different types of sampler and were comparatively examined by evaluating their physical properties, deformation characteristics and liquefaction strength. A close match of relative density, deformation properties and that of liquefaction strength properties to that of the field was shown by the samples collected by GS sampler than the Triple-tube types. This suggests a possibility of using a relatively less expensive GS sampler to collect high-quality samples from a loose sandy ground that is now primarily being applied for waste collection.
