Unit FOUNDATION ENGINEERING
- Course
- Civil engineering
- Study-unit Code
- A000872
- Curriculum
- Strutture
- Teacher
- Claudio Tamagnini
- Teachers
-
- Claudio Tamagnini
- Hours
- 84 ore - Claudio Tamagnini
- CFU
- 9
- Course Regulation
- Coorte 2020
- Offered
- 2021/22
- Learning activities
- Caratterizzante
- Area
- Ingegneria civile
- Academic discipline
- ICAR/07
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Guidelines for the design of foundation structures. ULS design of shallow and deep foundations. Earth pressures on retaining structures. ULS design of gravity and flexible retaining structures. The use of numerical methods in the assessment of the performance of engineering structures under service loading conditions. Steady and transient seepage problems. Theory of plasticity and its applications to soils. Linear and nonlinear deformation problems. Coupled consolidation problems. Soil-structure interaction in continuous shallow footings and flexible retaining structures. Evaluastion of safety with respect to SLS according to NTC 2018.
- Reference texts
- C. Viggiani (1999). Fondazioni (2a ed.). Hevelius, Benevento.
Bowles, L.E. (1996). Foundation analysis and design. McGraw-Hill.
C. Tamagnini (2015). Dispense di geomeccanica computazionale, Dipartimento di Ingegneria Civile e Ambientale, Perugia (available on web platform UNIStudium).
O.C. Zienkiewicz, R.L. Taylor (2006). The finite element method (vol. 1, 2). - Educational objectives
- The knowledge and skills which the students are expected to acquire from the course will include:
a) the safety of shallow and deep foundations with respect to geotechnical ULS and design them according to the NTC 2008 code;
b) the calculation of earth pressures acting on retaining structures under limit equilibrium conditions;
c) the evaluation of the safety conditions of retaining structures with respect to geotechnical ULS and their design procedure according to the NTC 2018 code;
d) the application of the FE method for the analysis of seepage, deformation and consolidation problem under service loading conditions;
e) the use the theory of plasticity to model the inelastic behavior of natural soils. - 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 pre-failure and failure states;
c) limit analysis theorems and limit equilibrium methods, as applied to geotechnical engineering problems. - 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; abaqus) for the analysis of seepage problems and nonlinear deformation problems, including soil-structure interaction;
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 are verified. The exam is divided in two parts. The first part covers the methodologies currently in use for the evaluation of safety of shallow and deep foundation structures, as well as of rigid and flexible retaining structures, with respect to ultimate limit states (ULS). The second part focuses on modern methods of computational geomechanics, with particular reference to the Finite Element method. In detail, the exam will focus on the applications of the FE method for the quantitative analysis of seepage problems and for the evaluation of safety of foundations and retaining structures with respect to serviceability limit states (SLS), with particular reference to the prediction of ground deformations and foundation displacements in nonlinear, coupled soil-structure interaction problems.
- Extended program
- The topics covered by the course can be divided in 3 parts:
Part 1. Shallow and deep foundations under ultimate limit states
Guidelines for the design of foundation structures. Shallow foundations; classification and constructive details. Evaluation of bearing capacity. Foundation design against ULS according to NTC 2018. Piled foundations: construction methods. Ultimate load of a single pile subject to vertical loads. Ultimate load of a single pile subject to horizontal loads: Broms' method. Piled foundation design against ULS according to NTC 2018.
Part 2. Retaining structures
Retaining structures: typology and classification. Earth pressures on retaining structures. Gravity and flexible retaining structures. ULS design of gravity retaining structures according to NTC 2018. ULS design of flexible retaining structures according to NTC 2018.
Part 3. The use of numerical methods in the assessment of the performance of geotechnical structures under service loading conditions.
Principles of numerical modeling of geotechnical problems. Mathematical formulation of geotechnical problems in strong and weak form. The FE method for stationary and transient seepage problems. The FE method for linear deformation problems. The nonlinear behavior of soils: experimental evidences. The theory of plasticity and its application to the constitutive modeling of soils. The FE method for nonlinear deformation problems. The FE method for coupled consolidation problems. Application of the FE method to the analysis of SSI problems for continuous shallow footings and flexible retaining structures for the evaluastion of safety with respect to SLS according to NTC 2018. - Obiettivi Agenda 2030 per lo sviluppo sostenibile
- No