Unit SLOPE STABILITY
- Course
- Environmental engineering
- Study-unit Code
- A002613
- Curriculum
- Difesa del suolo
- Teacher
- Claudio Tamagnini
- Teachers
-
- Claudio Tamagnini
- Hours
- 48 ore - Claudio Tamagnini
- CFU
- 6
- Course Regulation
- Coorte 2022
- Offered
- 2023/24
- Learning activities
- Caratterizzante
- Area
- Ingegneria per l'ambiente e territorio
- Academic discipline
- ICAR/07
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italiano
- Contents
- Seepage processes in natural slopes. Stability analysis for translational and rotational landslides in soils and rocks. Stabilization methods.
- Reference texts
- Picarelli L. (2000), MECCANISMI DI DEFORMAZIONE E ROTTURA DEI PENDII, Hevelius Editore.
Airo' Farulla C. (2015), ANALISI DI STABILITA' DEI PENDII - I METODI DELL'EQUILIBRIO LIMITE, Hevelius Editore.
Desideri A., Miliziano S., Rampello S. (1997), DRENAGGI A GRAVITA' PER LA STABILIZZAZIONE DEI PENDII, Hevelius Editore.
Bromhead E.N., The stability of slopes, 2nd ed., CRC Press. - Educational objectives
- The knowledge and skills which the students are expected to acquire from the course will include: a) the analysis of seepage processes in saturated and unsaturated soils; b) the quantitative evaluation of the safety of natural and man-made slopes against sliding failure using limit equilibrium methods; c) the design suitable stabilization measures for unstable or marginally stable natural slopes; d) the design of excavations and earth structures according to the safety requirements of the NTC 2018 code.
- Prerequisites
- The students must possess a sound knowledge of the basic principles of:
a) continuum mechanics of solids and fluids;
b) soil and rock mechanics, with particular reference to the description of their behavior at shear failure;
c) limit equilibrium method, as applied to continuous bodies of porous materials such as soils and rocks. - Teaching methods
- Teaching methods and support tools include:
a) Frontal lectures in class, with frequent interactions with the students by means of questions and answer sessions on the most significant topics covered;
b) Assisted class works including applications of classical design methods as well as of computational geomechanics, using modern FE platforms (seep/w; slope/w) for the analysis of seepage problems and the evaluation of slope stability by means of limit equilibrium methods;
c) Class seminars on specific topics, with overhead slide projector. - Other information
- For additional information, please check the website of the Department of Civil and Environmental Engineering, at the following link:
http://www.ing1.unipg.it/didattica/studiare - Learning verification modality
- The evaluation is based on a oral exam, with a duration of about 30’, in which the candidate's knowledge and skills on:
a) modeling of seepage processes in slopes;
b) the assessment of safety conditions of natural and engineered slopes with respect to sliding ULS, using the limit equilibrium method;
c) the choice of appropriate stabilization methods for unstable slopes and their design,
are verified. - Extended program
- The topics covered by the course can be divided in 3 parts:
Part 1: Seepage processes in natural slopes. This part includes: Governing equations. Steady-state processes: confined flow and free-surface flow. Transient problems: pseudo-3d consolidation theory of Terzaghi-Rendulic. Application of the FE method to seepage problems. Introduction to the SEEP/W code.
Part 2: Translational and rotational landslides in soils. This part includes: Fundamentals of the limit equilibrium method: definition of factor of safety. Global LE methods. Methods of slices: general formulation. Methods of Fellenius, Bishop, Janbu, Spencer and Morgernstern & Price. Comparison between the different methods of slices. Introduction to the SLOPE/W code. Slope stability analysis under seismic conditions.
Part 3: Stabilization methods. This part includes: Fundamentals. Slope profiling; definition of the neutral point. Drainage systems for the control of pore water pressures: hydraulic efficiency; trenches; tubular drains. Stabilization by means of structural elements: retaining walls; reinforced earth; anchors; passive piles. - Obiettivi Agenda 2030 per lo sviluppo sostenibile
- This course contributes to the fulfillment of the objectives of the UN Agenda 2030 for sustainable development.