Towards consistent numerical analyses of embankments on soft soils
Journal article, 2017

A consistent automated parameter derivation method for an advanced constitutive model, Creep-SCLAY1S, which considers anisotropy, structure and creep in soft soil is presented. The algorithms are implemented in a general purpose numerical framework and are robust for noisy data. The accuracy of the derived parameters are benchmarked against a well known test case: the Haarajoki test embankment. The results show that using the proposed methodology, a consistent parameter set is derived that enables accurate laboratory data and boundary value level simulations with limited to no major user intervention. The only remaining user input relates to the adjustment of the pre-consolidation pressure with 3 kPa. This difference between the laboratory and boundary value simulations is attributed mainly due to somewhat low quality of the samples.

structure

Parameter derivation

test embankment

creep

Creep-SCLAY1S

Automated parameter derivation

soft soil

anisotropy

Author

Amardeep Amavasai

Chalmers, Civil and Environmental Engineering, GeoEngineering

Jean-Philippe Gras

Chalmers, Civil and Environmental Engineering, GeoEngineering

Nallathamby Sivasithamparam

Norwegian Geotechnical Institute

Minna Karstunen

Chalmers, Civil and Environmental Engineering, GeoEngineering

Jelke Dijkstra

Chalmers, Civil and Environmental Engineering, GeoEngineering

European Journal of Environmental and Civil Engineering

1964-8189 (ISSN) 2116-7214 (eISSN)

Vol. In Press

Areas of Advance

Transport

Building Futures (2010-2018)

Subject Categories

Geotechnical Engineering

DOI

10.1080/19648189.2017.1354784

More information

Latest update

4/8/2021 1