Dynamic Characterisation of Soils from Laboratory Tests

This Panel presentation concerns with dynamic characterisation of soils from laboratory tests of undisturbed clays and summarises the research activity undertaken by the writer's at the University of Catania and at the Politecnico of Torino over the last five years. The paper describes and compares the results of laboratory investigations performed on Augusta and Catania clay which were carried out in order to determine the variation of shear modulus and damping ratio during Torsional Shear and Resonant Column tests; the pore pressure build up during the tests are also discussed. Finally the Young's Modulus is evaluated by triaxial monotonic apparatus equipped with local strain gauges.