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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Application of Barodesy - Extended by the Intergranular Strain Concept
verfasst von : Manuel Bode, W. Fellin, Gertraud Medicus
Erschienen in: Challenges and Innovations in Geomechanics
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Abstract
The intergranular strain concept allows a consideration of the deformation history of the soil in constitutive models. In this contribution this concept is applied on the constitutive model barodesy. This combination allows the usage of the asymptotic state boundary surface of barodesy, which helps to reduce the overshooting effects of the intergranular strain model. The finite element implementation of the model is presented, including a strength reduction procedure to calculate the overall factor of safety. The functionality of the model is verified in the simulation of the excavation of a construction pit. The influence of the intergranular strain concept on resulting deformations as well as on the calculated factor of safety is investigated.