Advanced Soil Constitutive Models and Their Applications to Offshore Geotechnical Problems

Abstract

AbstractAdvanced simulation of geotechnical problems involving clay may require sophisticated constitutive models in order to accurately capture the mechanical response of soil under various loading conditions, initial states and strain levels. This is of particular importance when numerical analyses involve an interaction of soil and structure possibly including large deformations and dynamic (cyclic) and impact loadings prevalent in most offshore geotechnical applications. Accordingly, some advanced soil models have been implemented into a bespoke finite element code and then applied to several dynamic coupled problems of geomechanics. This has provided more realistic numerical analyses for which different features of soil behavior have been taken into account. This paper presents some of these numerical simulations highlighting the importance of advanced soil constitutive models in geomechanics.KeywordsSoil constitutive modelsLarge deformationsOffshore geotechnics