The course is intended for practitioners interested in recent developments and applications of the finite element method and associated codes for solution of a wide range of problems in geotechnical engineering. It will emphasize the important topics of constitutive modelling and testing for geomaterials and interfaces/joints, and of determination of material parameters from laboratory test data. A number of up-to-date and improved computer codes will be described and their applications including validation for a number of laboratory simulated and field problems will be presented. It is also proposed to include demonstration of computer codes for solution of typical geotechnical problems. EXPECTED ATTENDEES Consulting engineers, practitioners and researchers, working in the field of Geotechnical Engineering, interested in applications of the finite element method, and of associated codes, for solution of a wide range of practical problems. COURSE OUTLINE 1. Introduction; 2. Description of finite element procedures for linear and nonlinear analyses. Derivation of static and dynamic coupled equations for two-phase analyses. 3. Brief review of constitutive models: elasticity, plasticity, creep, softening, and liquefaction. 4. Motivation for improved, simplified and realistic models. Introduction to the "Disturbed State Concept" (DSC) for geomaterials, interfaces and joints. 5. Presentation of DSC and "Hierarchical Single Surfaces" (HiSS) plasticity models. 6. Determination of model parameters from laboratory test data. 7. Implementation of DSC/HiSS models in computer procedures. 8. Modeling of in situ stress conditions, de-watering, embankments, excavation and support systems such as bolts and anchors. 9. Applications including validation of 2-D and 3-D codes: shallow foundations; pile groups; retaining walls; dams and slopes; underground works; earth reinforced walls; cyclic response of piles; landslides; Kobe earthquake; liquefaction; thermo-mechanical analysis; etc. 10. Open discussion with questions from the attendees.
Annamaria Cividini (None)
5 lectures on: Derivation of governing equations for two-phase analyses. Determination of material parameters from laboratory tests. Modeling of excavation and construction stages. Applications (consolidation, tunneling, slope stability, earth reinforced structures, etc).Chandrakant Desai (None)
5 lectures on: Description of FE procedures. Overview of constitutive models. Presentation of the DSC (Disturbed State Concept) for geomaterials. Introduction to DSC and "Hierarchical Single Surface (HiSS)" plasticity models.Xueyan Liu (None)
Athanassios Scarpas (None)
Russell Whitenack (None)
6 lectures on: Implementation of DSC/HiSS models in computer procedures. Validation of computer codes. Applicative examples (liquefaction, Kobe earthquake, thermo-mechanical analysis, etc).