# Unit HYDRAULIC STRUCTURES

Course
Civil engineering
Study-unit Code
A001081
Curriculum
Strutture
Teacher
Piergiorgio Manciola
Teachers
• Piergiorgio Manciola
Hours
• 35 ore - Piergiorgio Manciola
CFU
5
Course Regulation
Coorte 2021
Offered
2021/22
Learning activities
Affine/integrativa
Area
Attività formative affini o integrative
ICAR/02
Type of study-unit
Opzionale (Optional)
Type of learning activities
Attività formativa monodisciplinare
Language of instruction
Italian
Contents
Laws and technical standards of dams. Italian Register of Dams. Pipe Stress Analysis. Gravity dams: design features and technical design. Arch dams: structural characteristics and design fundamentals. Embankment dams: earth-fill dams, composite dams, rock-fill dams, concrete-face rock-fill dams, general safety conditions, seepage forces, stability analysis. Additional works: spillways, bottom outlets, dam diversion tunnel.
Reference texts
Duplicated Lecture notes
SUPPLEMENTARY TEXTS:
Filippo Arredi, Costruzioni Idrauliche, Volume III, IV, UTET, Torino.
Giuseppe Evangelisti, Impianti Idroelettrici, volume I, Patron Bologna.
Educational objectives
Theoretical knowledge and basic practical skills for the design and management of dams (gravity dams, arch and multiple arch dams, embankment dams, barrages) and additional works (spillway, bottom outlets, stilling basin, dam diversion tunnel).
Prerequisites
In order to deeply understand mathematical models involved in the program of the course and to reach the expected learning results the following elements are required:
•Mathematical analysis: analytic functions, differential and integral calculus of functions of single and several variables, partial differential equations.
•Physics and Rational Mechanics: vector calculus, cardinal equations of statics and dynamics.
•Hydraulics: elements of Hydrostatics, open channel flow and pressurized flow.
•Structural Mechanics and Strength of Materials: materials mechanical response, continuum mechanics, elements of structural analysis
•Municipal Water Systems: static analysis of underground pipes.
•Hydrology: main components of hydrological cycle (precipitation, runoff, infiltration)and basic hydrological modeling.
Teaching methods
Classroom lectures on all subjects of the program with interactive involvement of students. Classroom exercises performed on the blackboard. Seminar frontal lessons with projector support.
Other information
The main course Hydrology and Hydraulic Structures is divided into two coordinated modules: i) Hydrology II ii) Hydraulic Structures.
Statistical analysis of exam mark obtained by students
Sample constituted by 406 students.
Average mark: 27.19; standard deviation:2.10.

Percentage of students who obtained an exam mark included in the range
18 - 21 0.5%
22 - 24 13.3 %
25 - 27 36.7 %
28 - 30 46.8 %
30 cum laude 2.7 %
Classroom analysis is provided for elementary case studies.
Reception hours: Wednesday, 15:30 - 17:30. Venue: Office of Prof. Manciola Piergiorgio, Water Engineering Section, Department of Civil and Environmental Engineering, Via G. Duranti, 93 Perugia (tel +393356209101).
For information on support services for students with disabilities and / or DSA visit http://www.unipg.it/disabilita-e-dsa.
Learning verification modality
HYDROLOGY AND HYDRAULIC STRUCTURES
The exam of the course consists of a written test and two oral discussions over the contents of the two parts of the course program (Hydrology II and Hydraulic Structures), to be performed separately or in the same exam session.
The written exam, lasting 1 hour, consists of the solution of two problems related to the hydrological modeling, the first one of computational type and the second one of both computational and conceptual kind. The test has the aim to prove the ability of understanding the proposed problems and applying theoretical knowledge in order to obtain quantitative results, the skill to elaborate by self-judgment proper remarks, and the capacity to effectively communicate in a written form.
The two oral exams, each one lasting about 45 minutes, are directed to check out the knowledge level over the course contents divided into two parts (Hydrology II and Hydraulic Structures), the acquired ability to apply the studied models and techniques and the ability to select the proper methodology by self-judgement. Furthermore, the oral exams have also the objective to evaluate communication skills and the usage of an appropriate language about the theoretical and practical subjects of the course.
The grade of the exam is certified with the local grade system, which is a number on a scale from 18 to 30. The exam mark will be provided by a weighted average of the results obtained in the separate tests, with the following weights: written test: 1/6; oral test related to the first part of the course program (Hydrology II): 1/3; oral test related to the second part of the course program (Hydraulic Structures): 1/2.
Extended program
The teaching activities is aimed to provide the theoretical knowledge and practical skills for the design and management of dams (gravity dams, arch and multiple arch dams, embankment dams, barrages) and additional works (spillway, bottom outlets, stilling basin, dam diversion tunnel)
Laws and standards: i) laws and technical standards for the design, construction and operation of dams; ii) laws and technical standards for alert systems and danger signals; iii) National Dams Service and Italian Register of Dams; iv) skills for supervising the design, construction and operation of dams; v) studies, preliminary research and policy setting of the project. Pipe Stress Analysis: i) stresses induced by central pressure; ii) stresses due to constrained thermal deformations; iii) loads due to the backfill soil; iv) symmetrical vertical loads; v) longitudinal stability of pipes. Gravity dams: i) design features of gravity dams; ii) evolution of static analysis of dams; iii) Levy's theory of elastic solid triangular indefinite; iv) pore pressure distribution; v) technical design of gravity dams. Arch dams: i) structural characteristics of the arch dams; ii) static analysis methods; iii) horizontal arch theory (constant thickness, constant radius); iv) stresses due to constrained thermal deformations; v) eccentricity analysis on impost and keystone arch dam; vi) eccentricity correction to the arch dam impost; vii) fundamentals of arch dam with three radii of curvature. Embankment dams: i) classification of soils and compaction ; ii) earth-fill dams, composite dams, rock-fill dams, concrete-face rock-fill dams; iii) general safety conditions; iv) dam upstream face protections; v) impervious slabs on the upstream face (concrete of bitumen, cement concrete, plastic membrane, steel sheet piles); vi) seepage forces; vii) analysis of embankment dams stability (limit equilibrium fundamental, factor of safety methods, slip surface shapes). Additional works: i) spillways (controlled and uncontrolled, chute spillways, stepped spillways, energy dissipation basin or stilling basin); ii) bottom outlets with valves or gates; iii) dam diversion tunnel.
Condividi su