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Evaluation of consolidation theories by centrifuge modelling.
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1985
Year
Unknown Venue
Geotechnical EngineeringSoft ClaySoil CompactionEngineeringGeotechnical PropertyMechanicsGeotechnical ProblemCivil EngineeringMechanical EngineeringScaling RelationsPhysical ModelingGeomechanicsSimulationThick LayerModeling And SimulationMechanics Of MaterialsConsolidation TheoriesSoil Mechanic
This paper studies the self-weight consolidation of a thick layer of soft clay by means of centrifugal models. It is shown that the scaling relations can be derived by considering the similarity of the forces relevant to the problem and can then be validated by modelling of models experiments. The behaviour of the prototypes obtained by the centrifugal experiments is compared with the results of both finite strain and conventional consolidation analyses. On the basis of such comparisons, the effectiveness of the theories is evaluated. It is shown that nonlinear finite strain consolidation theory is an accurate predictor of prototype response. It is also pointed out that permeability is the most critical parameter in the use of this theory. Finally, it is shown that conventional consolidation theory is inadequate for studying the process of consolidation of soft clay layers. The number of the covering abstract of the symposium is IRRD 286058. (TRRL)