1st General Report for TC 203 Seismic response of soils, foundations and geotechnical structures

This session is mainly dedicated to the seismic response and stability of soils, foundations and geotechnical structures. The various following sub-Topics are discussed: site effects and soil seismic response (strong seismic motion and seismic hazard in urban areas), landslides (shaking table tests with vertical and horizontal loadings), in situ tests (soil penetrometric characterization, pseudostatic load tests on piles), soil behaviour and liquefaction (Prevost vs Drucker-Prager models, response-envelopes method), earth works stability (retaining walls and excavations, earth dams and embankments), soil improvement (stiff columns, stone columns, soil pillows), seismic isolation techniques (seismic wave screening, isolating foundation system), piles and foundations (performance-based Limit States Design, windmill foundations, Dynamic Hereditary creep theory), numerical modelling (3D FEM simulations for multi-Arch culverts, earth pressure coefficients on vertical rigid walls, response of a suspension bridge anchor block to oblique-slip fault movement, dynamic behaviour of a 3D soil-foundation-building system with a seismic isolation). The findings from these papers are synthetized in this report and the links between experimental, theoretical and numerical approaches are discussed.