Course Details

River Training and Weirs

Academic Year 2024/25

BRA005 course is part of 2 study plans

BPC-SI / V Summer Semester 3rd year

BPC-MI Summer Semester 3rd year

Course Guarantor

Institute

Language of instruction

Czech

Credits

4 credits

Semester

summer

Forms and criteria of assessment

course-unit credit and examination

Offered to foreign students

Not to offer

Course on BUT site

Lecture

13 weeks, 2 hours/week, elective

Syllabus

1. Water courses and structures on rivers in Czech republic, SVP, introduction to channel hydraulics, components of river channel evolution, composition of channel bed, granulometric curve (grain size curve), classification of river network, river systems in ČR. 2. Conceptual solution of river training – natural building of channel – purpose of channel reconstruction, design discharge determination, design of the course, the term eco-biological reconstruction, revitalization. 3. Design of river regulation – longitudinal bed slope, design and assessment of cross section, types of flow – computational methods, steady, continuously changing unsteady flow. 4. Bank stability analysis – stability of channel banks and slopes, their determination in straight and curved reach, shear stress, river channel deformation, sediment motion, drag force, critical shear stress. 5. Lining structures in channels – protection of bed and heel of the slope, methods of bank slope stabilization, technical, bio-technical and biological lining components. . Levees – their construction, objects – drops, boulder chute. 6. Streamside trees and shrubs – vegetation on banks, space and type composition of riparian forest, design of riparian zones, work with multicriterial design table of broadleaves, assessment of existing state of riparian forest. 7. Purpose and character of weirs – basic terms, weir types, ground area setting, design discharge, overfall curve. 8. Uncontrolled weir – structure of uncontrolled weir, types of uncontrolled weirs, founding, weir pillars, training walls. 9. Stilling basin – design of stilling basin, baffles and rectifiers of flow, bed protection and lining downstream the weir. 10. Safety and stability of weirs – forces effecting weirs, weir stability analysis. 11. Movable weirs - types of movable weirs, hydrostatic weirs and inflatable weir, flashboard of weirs, walkway. 12. European navigation – importance of navigation, lock canal Dunaj-Odra-Labe, navigation devices, course, longitudinal and cross sectional profile of lock canal, banks stability.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

1. Introduction to the course. 2. The transfer of a given section of stream, to render transparent the longitudinal profile. 3. Design a new channel. 4. Completing and approval of the new channel. 5. Assessment of the stability of the channel. 6. Design of the fortifications, the rendering model of the cross-section. 7. The proposal weir. 8. Calculation of the curves of the overflow. Dimensioning the upper. 9. The proposal for the upper. 10.–11. Drawing documentation.