- Docente: Laura Govoni
- Credits: 6
- SSD: ICAR/07
- Language: Italian
- Moduli: Laura Govoni (Modulo 1) Laura Govoni (Modulo 2)
- Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
- Campus: Ravenna
- Corso: First cycle degree programme (L) in Building Engineering (cod. 0921)
Learning outcomes
The course is an introduction to soil mechanics and applications of
its principles to the engineering practice.
Course contents
Soil analysis and classification. Origins of soils. Nature of
soils. Soil mineralogy and structure. Phase relationship.
Particle size distribution. Atterberg limit. Soil description and
Soil classification systems. Water in the ground. Soil water
properties. Fundamental hydrostatic. Effective stress principle.
Capillary rise, frost heave. Vertical stresses against depth.
Bernoulli equation. Seepage through a porous medium, definition and
evaluation of the hydraulic potential. Darcy law and the
permeability coefficient. Seepage force and critical hydraulic
gradient. Soil stresses. Soil as continuum medium. Stress
analysis, sign conventions, Mohr circle of stress. Earth pressure
coefficient. Soil history: normal consolidated and over
consolidated soils. Peconsolidation pressure and reasons of
overconsolidation. Stresses distribution in an elastic homogenous
half-space. One dimensional compression and consolidation. The
oedometer test: aim, apparatus, experimental procedure, data
processing and presentation of results. One dimensional
consolidation. Oedometric parameters and calculation of soil
settlement. Secondary compression. Shear strength. Mohr-Coulomb
failure criterion. Shear strength parameters and experimental
determination. Direct shear strength test and triaxial test.
Strength and strain of cohesionless and clay soil. Residual shear
strength. Stability analysis in terms of effective and total
stress. Site investigation. Objectives and experimental set up.
Borehole logs and sampling. Cone penetrometer and piezocone tests.
Site measurements. Lateral heart pressure. Active and passive
Rankine's stress state. Coefficients of active and passive earth
pressure. Lateral heart force diagrams. Stability analysis of
earth-retaing structures. Foundation. Shallow and deep foundation
systems: types and technology. Bearing capacity of a shallow
foundation (Terzaghi and Rankine). Stabilty in terms of total and
effective stress. Calculation of settlements. Driven and installaed
piles. Static and dynamic bearing capacity formulae for piles, base
and shaft resistance.
Readings/Bibliography
P. COLOMBO e F. COLLESELLI: Elementi di Geotecnica, Zanichelli,
1996.
J. ATKINSON: Geotecnica , McGraw Hill, 1997
L. TONNI E GUIDO GOTTARDI: Esercizi di Geotecnica, Esculapio,
2010.
Teaching methods
The course conten will be covered by the lectures.
Assessment methods
An oral examination will assess the knowledge achieved throughout
the course.
Teaching tools
The teaching tools are projector and PC. Slides Download at the
Alma Mater Digital Library website (https://campus.cib.unibo.it/)
subscribing to the l.govoni.EGT list at
https://www.dsa.unibo.it/
Office hours
See the website of Laura Govoni