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A non-associated critical state model for the prediction of the at rest earth pressure coefficient in normally consolidated soils

Lookup NU author(s): Dr Gaetano EliaORCiD



Several theoretical expressions of the at rest earth pressure coefficient for normally consolidated soils (K0nc) are available in the literature. Some of them have been derived using Critical State Soil Mechanics constitutive models. However, these models usually over-predict the K0nc values. The possibility to improve, in principle, the K0nc prediction simply changing the plastic potential surface shape of the Modified Cam-Clay model, i.e. adopting a non-associated flow rule, is described in the paper.

Publication metadata

Author(s): Federico A, Elia G, Murianni A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 8th International Congress on Advances in Civil Engineering

Year of Conference: 2008

Date deposited: 16/12/2009