Strategy for consistent model parameter calibration for soft soils using multi-objective optimisation
Artikel i vetenskaplig tidskrift, 2017

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.

CREEP-SCLAY1S

Soft soil

Multi-objective optimisation

Sensitivity analysis

Författare

Jean-Philippe Gras

Chalmers, Bygg- och miljöteknik, Geologi och geoteknik

N. Sivasithamparam

Norges Geotekniske Institutt

Minna Karstunen

Chalmers, Bygg- och miljöteknik, Geologi och geoteknik

Jelke Dijkstra

Chalmers, Bygg- och miljöteknik, Geologi och geoteknik

Computers and Geotechnics

0266-352X (ISSN)

Vol. 90 164-175

Ämneskategorier

Geologi

DOI

10.1016/j.compgeo.2017.06.006

Mer information

Skapat

2017-10-07