WATERSHED HYDRAULIC PROTECTION

Basic aim of the course is to provide fundamentals, methods and procedures for the hydraulic protection of watersheds. The course consists of active lectures and exercises.

CHARACTERISTICS OF WATERSHEDS AND STREAMS

Geometrical representation of watersheds. Strecher diagram. Hypsographic curve. Hydrodynamic diagram. Stream representation fundamentals. Planimetries, longitudinal profiles, cross-sections. Level-flow relationship, Chronological curve, Duration curve. Utilization curve.

HYDRAULICS

Uniform flow. Composite roughness. Channels of compound section. Gradually varied flow. Hydraulic jump and stilling basins. Energy dissipation structures, steps. Free flow over a step. Sediment transport. Erosion down to steps. Backwater determined by bridge piers. Channel bed erosion due to piers.

HYDRAULIC PROTECTION OF NATURAL WATERSHEDS

Flood risk evaluation and mitigation measures. Piano di Assetto Idrogeologico. Slope erosion. Universal Soil Loss Equation. Equilibrium slope. Compensation slope. Design Slope. Upstream catchment structures. Check dams. Design of check dams. Open check dams. Weirs. Riverbank protection. Torrent groynes. Steep channels. Downstream catchment structures. Embankments. Embankments design. Filtration process. Evangelisti’s method. Pavlosky’s method. Siphoning. Embankment protection. Spill and diversion structures. River groynes. Dams.

HYDRAULIC PROTECTION OF URBAN WATERSHEDS

Urban drainage systems. Flooding and overflow discharge problems. Combined systems and separate systems. Design of wastewater sewers. Design methods for stormwater drainage systems. Peak flow discharge evaluation. Pipes and channel design. Siphons. Overflow structures. Receiving water bodies. Stormwater storage basins. Best management practices.

AA.VV., (1997). Sistemi di fognatura. Manuale di progettazione. CSDU, Hoepli Ed., Milano.

Armanini, A. (1999). Principi di Idraulica Fluviale. Ed. BIOS, Cosenza

Benini, G. (1978). Sistemazioni idraulico-forestali. Ed. CLEUP, Padova

Da Deppo, L., Datei, C., Salandin P. (1995). Sistemazione dei corsi d’acqua. Ed. Liberia Cortina, Padova