Learning outcomes of the course unit
The course intends to supply basic elements of mechanics of soils describing their hydro-mechanical behaviour and illustrating the most commonly used characterisation tests. Certain methods, in common use in the field of construction engineering for foundation design will then be covered. In particular, on the basis of the soil-structure interaction, the aim is to supply criteria for evaluating the safety conditions of the foundations and the criteria for their consolidation.
Laboratorio di Costruzione I
Scienza delle Costruzioni I
Course contents summary
Design technique in geotechnical engineering. Characteristics and classification of soils. Particle size analysis. Atterberg limits. Classification systems. Stress and deformation tensor. Principle of effective stresses. Hydrostatic pressures, total stresses, effective stresses in the ground. Geological history of soil deposits. Oedometric test. Normally consolidated and overconsolidated soils. Oedometric settlements of shallow founfdations. Mechanical behaviour of soils. Drained and non-drained conditions. Rupture envelopes. Strength criteria. The dilatancy phenomenon. Critical and residual conditions. Determination of strength parameters through in situ and laboratory tests. References to stress methods. Active and passive states of limit equilibrium. Limit equilibrium method. Rigid supports. Determination of earth pressures. Determination of water pressure and overloads. Types of foundation. Surface foundations, rupture mechanisms. Load bearing capacity of surface foundations. Collapse on cohesive and non-cohesive soils. Issues regarding buildings of historical interest. Analysis of real cases.
R. Lancellotta, Geotecnica, Zanichelli, 1995. - P. Colombo, F. Colleselli, Elementi di geotecnica, Zanichelli - R. Lancellotta, Josè Calavera, Fondazioni, Mc Graw Hill, 1999.
The course is complete with application examples and theory application exercises.
Written and oral examination