HYDRAULIC STRUCTURES

Single discipline educational activity

Course Sheet

Academic Year of enrolment:

2017/2018

Academic Year of provision:

2018/2019

Type of Course:

Characterising

Degree:

Master's Degree Programme in LAND AND ENVIRONMENTAL ENGINEERING

Disciplinary Sector:

Maritime Hydraulic Construction and Hydrology

Language:

Italian

Grouping type:

Credits:

Programme Year:

Professor and Collaborators:

BALISTROCCHI Matteo Professor

Cycle:

First semester

Hours of classroom activity:

108

Hours of individual study:

117

The knowledge related to the course of Hydraulics is to be a crucial background. The courses of Hydrology and Environmental Hydraulics are intended as preparatory. The basics of these teachings will however be briefly recalled, during both the theoretical lessons and the numerical exercises.

Educational Goals

The course intends to provide students with the basics for the design and verification of some important hydraulic works for the management of water resources and sewage conveyance; these devices will be suitably selected among the most recurring ones during the professional activity of the civil and environmental engineers. Indeed, the course will mainly focus on aqueduct networks and urban drainage networks, hydraulic infrastructures having a crucial relevance in the fulfillment of some basic needs of the human settlements, such as: water-drinking supply, waste water management, hydraulic protection of the territory and the mitigation of the qualitative and quantitative impacts of urbanization on water bodies.
Practical and operative application will then be given to the concepts acquired in the courses of Hydraulics, Environmental Hydraulics and Hydrology, whose basic aspects will however be briefly recalled during the course development. The carrying out of a final report on one of the issues addressed during the course will also provide the opportunity to draw up a technical report, similar to those required in the professional activity.
The acquired skills will allow students to face complex and unconventional design and verification problems, allowing also to conduct critical analyzes of some increasingly recurrent and current problems such as: urban flooding, mitigation of the qualitative and quantitative impact of discharges on bodies water reservoirs, saving of water resources, reuse of rainwater. Consistent with the training objectives of a master's degree program, these skills are summarized in the following descriptors:
+ ability to apply knowledge, comprehension skills and skills in solving problems to new or unfamiliar subjects, inserted in wider (or interdisciplinary) contexts related to their field of study;
+ ability to integrate knowledge and manage complexity, as well as to make judgments based on limited or incomplete information, including reflection on social and ethical responsibilities related to the application of their knowledge and judgments;
+ ability to communicate their conclusions clearly and unambiguously, as well as the knowledge and rationale underlying them, to specialists and non-specialist interlocutors;
+ ability to develop those learning skills that allow them to continue to study mostly in a self-directed or autonomous way.

Content

The teaching aims at illustrating the planning criteria of some hydraulic infrastructures and the methods of designing and verifying their components. To this end, the analytical closed form methodologies (deterministic and probabilistic) more consolidated and traditional in the Italian design practice, will be derived. However, numerical methodologies based on the development of hydrodynamic models in freeware software environments will be illustrated as well. Actually, the use of these tools is now widespread not only in the field of scientific research, but also in the practice and it is important that students are able to use them in a conscious way, understanding their potentials and limits.

Extended Syllabus

The course will deal with the following topics, divided by scope.

1. Aqueducts and drinking water supply systems
- supply sources: types, characteristics and estimate of the available supply capacities
-estimation of the demand: water demand, consumption fluctuations, served population, sector regulations
- hydraulics of steady flows in pressurized pipes: verification problem (recalls) and design problems also hydraulically indeterminate
- conveyance systems: design and verification of supply lines, pumping stations, drainage wells
- hydraulics of unsteady flows in pressurized pipes: transient due to maneuvers, Allievi-Michaud formula, water hammer, mitigation systems
- storage tanks and their functions
- tree and closed mesh distribution network: design and verification criteria, Hardy-Cross method
- pipe material types and their choice

2. Practical hydrology: full models
- hydrological models based on the transformation of outflow inflows: linear and stationary methods (corrivation and reservoir)
- indirect statistical models (recalls)

3. Open channel flows
- hydraulics of steady flows in open channels (recalls)
- design and verification of open channels: criteria for closing the indetermination
- hydraulics of unsteady flows in open channels: De Saint Venant equations solutions (outline)

4. Sewer networks and wastewater disposal
- types and patterns of sewer networks: separated, combined and mixed networks
- design and verification of sewer pipes: criterion of the critical event
- discharge outflow control: types of conventional devices and sector regulations
- recurrent works: inspection, confluence and jump manholes, inlets and connections
- special art works: siphons, pumping stations, flushing manholes.

5. Sustainable urban drainage
- sources of point and non point pollution
- concepts of urbanization impact mitigation on the water cycle
- infiltration and storage devices: design and verification criteria for infiltration structures, first foul flush tanks and routing reservoirs
- discharge outflow control: types of innovative devices (high threshold spillways, overflow with still basin and hydrodynamic vortex separators)

6. Structural problems: static verification of the pipes

7. Use of freeware software programs for the design of hydraulic works
- EPANET aqueducts
- SWMM drainage

Recommended Bibliography

Fundamental textbooks
Becciu G., Paoletti A.: Fondamenti di Costruzioni Idrauliche, UTET, 2010.
Bianchi A. ,Sanfilippo U., Pompe e impianti di sollevamento, manuale di progettazione e di realizzazione, Hoepli, 2001.

Water supply system in-depth:
V. Milano: Acquedotti - HOEPLI 2a Edizione, 2012.
Da Deppo L., Datei C., Fiorotto V., Salandin P.: Acquedotti 4a Edizione, Libreria Internazionale Cortina Padova, 2012.

Sewer system in-depth:
Da Deppo L., Datei C.: Fognature 9a Edizione, Libreria Internazionale Cortina Padova, 2017.
AAVV, Sistemi di fognatura, manuale di progettazione, a cura del Centro Studi iDraulica Urbana, Hoepli, 1997.
AAVV, Acque di prima pioggia nei sistemi di fognatura. Manuale di progettazione, a cura di Ciaponi C., Papiri S., Sanfilippo U., Todeschini S., Hoepli, 2015.
Akan A. O., Houghtalen R. J.: Urban hydrology, hydraulics and stormwater quality, Wiley, Hoboken NJ, 2003.

Methods of Provision

Conventional

Teaching Methods

The topics will be theoretically discussed through lectures, which will be followed by numerical exercises to the computer in order to better assimilate the contents and to acquire the necessary familiarity with regard to quantitative aspects. Technical visits and seminars could be carried out to supplement and deepen the themes dealt with during the theoretical lessons.

Assessment Methods

The verification of learning will be taken as interview, starting from the discussion of a final project, developed during the exercises in reference to a real world case study and inherent the topics discussed during the theoretical lectures. The interview will, anyway, focus on all the topics illustrated during lectures and on the insights carried out during the exercises. The presentation of the project is to be considered preparatory to the interview examination.
For students who had attended during previous academic years, there is the possibility to access the interview through a written test, substitutive of the exercise report, in which it will be required to face a problem of design or verification of a hydraulic structure.

Assessment:

Final Mark

Programme of Educational Activities

Start date of teaching period:

Monday, September 17, 2018

End date of teaching period:

Friday, December 21, 2018

Other Information

Some seminars could be supplied in English

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