Study-unit SLOPE STABILITY
| Course name | Environmental engineering |
|---|---|
| Study-unit Code | A002613 |
| Curriculum | Difesa del suolo |
| Lecturer | Claudio Tamagnini |
| Lecturers |
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| Hours |
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| CFU | 6 |
| Course Regulation | Coorte 2022 |
| Supplied | 2023/24 |
| Supplied other course regulation | |
| Learning activities | Caratterizzante |
| Area | Ingegneria per l'ambiente e territorio |
| Sector | 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. |