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  • Strategy for consistent mod...
    Gras, J.-P.; Sivasithamparam, N.; Karstunen, M.; Dijkstra, J.

    Computers and geotechnics, 10/2017, Letnik: 90
    Journal Article

    Constitutive models for soft soils require a large number of parameters to model the complex material response. One set of parameters should capture the soil response for various laboratory & in situ stress paths. This requires a new method to calibrate a consistent set of model parameters using test data from different load paths of classic geomechanical tests. The feasibility of the proposed method is demonstrated with the recently developed CREEP-SCLAY1S model. After a sensitivity analysis that highlights the model parameters for optimisation, an optimisation process for two different configurations is designed. The latter is successfully verified against artificially generated laboratory data.