Course teached as: B019529 - IDROLOGIA E COSTRUZIONI IDRAULICHE (6 CFU) 3-years First Cycle Degree (DM 270/04) in CIVIL, BUILDING AND ENVIRONMENTAL ENGINEERING Curriculum INFRASTRUTTURE
Teaching Language
Italian
Course Content
Objectives: Analysis of hydrological phenomena for hydraulic design. Theoretical and practical fundamentals of hydraulic structures design for territory protection.
Topics: River basins. Precipitations. Meteo-climatic measurements. Hydrological extreme values. Soil hydrology. Evapotranspiration. Hydraulic measurement. Rainfall-runoff models. Flood runoff and flow routing. Erosion and sediment transport. River basin management: river engineering; flood mitigation structures.
Greppi M., 2005. Idrologia, Hoepli Editore.
Brutsaert W. , 2005. Hydrology: An Introduction. Cambridge Press.
Ferro V., 2006. La sistemazione dei bacini idrografici, McGraw-Hill Companies.
Novak et al., 2007. Hydraulic Structures, Taylor & Francis.
For further studies and/or alternative
Manfreda S., Iacobellis V. e Fiorentino M., 2010. Appunti di Idrologia Superficiale, Aracne Editore.
Da Deppo L., Datei, C. e Salandin, P., 2002. Sistemazione dei corsi d'acqua, Cortina, Padova.
Chanson H., 2004. Hydraulics of Open Channel Flow: An Introduction, Butterworth-Heinemann.
Learning Objectives
In the frame of Hydrology the aim is to refine the student competence on hydrological phenomena, at river basin scale, for design rainfall and discharge estimation for the hydraulic structures design.
The part of the course dedicated to the Hydraulic Structures is developed with the aim to refine thestudent education in hydraulic engineering. Specifically, it is aimed toenlarge the knowledge on watershed management, river engineering, supplying the theoretical andpractical competences necessary for this scope.
The regional, national and international laws for territory defense against flood risk phenomena are also presented and discussed.
Prerequisites
Probability and Statistics. Fluid mechanics.
Teaching Methods
The course is developed in classroom lessons, thematic lectures and practical exercises.
Further information
Lectures notes and further documentation, as well as data for exercises development are available on e-l.unifi.it.
Type of Assessment
Oral examination where also the project work, carried out individually or in a small group, is discussed.
Course program
An introduction to hydrological science and the global hydrological cycle.
Drainage basin definition. Stream network and hypsometric curve. Morphologic, planar and relief parameters. Stream ordering system.
Precipitation formation processes and types. Measurement of precipitation. Variability of precipitation distribution.
Measurements of meteorological variables.
Collection, editing and representation of hydrological and geographic data with the use of GIS for hydrological analysis of a river basin.
River stage, velocity and discharge measurements. Rating curve. Duration curve.
Evaporation and transpiration and methods to estimate evapotranspiration.
Design of storms (precipitation depth). Return period. Intensity-Duration-Frequency curve.
Hydraulic soil properties. Infiltration. Darcy’s law, Richards equation, flow in saturated and unsaturated soils.
Interception. Runoff formation mechanisms and overland flow. Rainfall-runoff models:rational method, SCS-CN method. Simplified scheme for long-term hydrological balance. Instantaneous Unit Hydrographs. Design hydrograph.
Fundamental of rivers sediment transport.
Fundamentals of river basin managements.
Weir hydraulic design: typology of weirs, weirs stability analysis. Design of river banks. Protection by transversestructures. River dykes design criteria.
Flood reservoir and flood area design. Bypass channels.