Sumários
Lesson 13
7 novembro 2019, 09:00 • Rafaela Cardoso
Geosynthetics in embankments. Categories of geosynthetics and using geosynthetics: Construction rules; Geosynthetics choice; Characteristics.
Lesson 12
31 outubro 2019, 11:00 • Rafaela Cardoso
Water retention curve and unsaturated permeability to model infiltration processes. Volume changes on wetting and their stress dependence. Stiffness and strength increment due to suction in sands and fine soils Water as corrosive agent and mechanism of sucessive block breakage to explain creep in rockfill.
Lesson 11
31 outubro 2019, 09:00 • Rafaela Cardoso
The importance of water in clayey soils, sand and rockfill. Capillarity, surface tension and electrostatic interaction forces. Free water and constitution water. Osmotic, matric and total suction. Psychrometric law. Effective stresses for unsaturated states.
Lesson 10
24 outubro 2019, 11:00 • Rafaela Cardoso
The importance of water in soils. Fine soils, sands and rockfill. Capillary effects. Laboratory experiment to observe swelling or collapse upon wetting depending on the vertical stress applied.
Lesson 9
24 outubro 2019, 09:00 • Rafaela Cardoso
Design of embankments: the importance of the foundations, drainage systems and special embankments. Solutions to speed up settlements or to strength the foundation soil. Working principles of the most usual solutions for foundation reinforcement.