Numerical Analysis Seminars: Numerical modelling in geotechnics
6 December 2002 14:00 in CM105
"Geotechnical engineering is concerned with the response of existing rock and soil features to new constructions, and the behaviour of the structures themselves. This includes tunnels, retaining walls and foundations. Two problems usually require solutions: determination of movements during and after construction and assessment of overall stability. The former problem is often tackled using conventional finite element techniques. Geomaterials (e.g. soil and rock) are, however, very poorly modelled with linear elasticity and complex non-linear elasto-plastic models, devised especially for geomaterials, are necessary. In addition, modelling often includes many loading stages and the simulation of processes such as tunnel lining and drainage. These factors togethre with the size of many of the models makes finite element modelling in geotechnics unlike most other areas of civil engineering and much more challenging. This talk will highlight some of these issues using examples from my research over the past few years. In addition I will also discuss the modelling of collapse situations in geotechnics, using finite element limit analysis techniques.
This seminar will start at 2:15
Contact David.Bourne@durham.ac.uk for more information