Course Details

Sediments in Rivers

NRB015 course is part of 1 study plan

Ing. full-t. program NPC-SIV compulsory-elective Summer Semester 1st year 4 credits

Course contents: Basic division and concepts including global characteristics. Properties of water, sediments, deposits and suspensions. The characteristics of flow without and with transport of sediments. Erosion, transport and deposition of sediments including the characteristics of the movement, equations of continuity and dischrge of sediments. Measurement in rivers and reservoirs. Influence of sediment dischrge and sediment transport. Modelling the sediment transport and the evolution of river channels. Sediments and depostits in reservoirs. Case studies.

Course Guarantor

doc. Ing. Zbyněk Zachoval, Ph.D.

Institute

Institute of Water Structures

Learning outcomes

The aim of the course is to introduce the student to the erosion, transport and deposition processes in rivers and reservoirs.
The student will acquire basic knowledges about the physical properties of sediments and deposits, the transport of sediments, the calculation of their dischrge, the possibilities of their modelling and measurement, and the prediction of the evolution of river channels and the deposition of reservoirs.
The basic skill of the graduate is the ability to process a sediment study of the river reach.

Prerequisites

Hydraulics, hydrology, soil mechanics, dams, reservoirs, river training and weirs.

Planned educational activities and teaching methods

Teaching methods, namely lectures and exercises, are described in Article 7 of the BUT Rules for Studies and Examinations. Perhaps it is a follow-up to the assignment of the final thesis and another professional growth in doctoral studies.
The consultation hours are offered individually according to needs and possibilities of the student and the teacher.

Forms and criteria of assessment

Credit: Attendance at least 90%, elaboration and presentation of a sediment study of a selected river reach.
Examination: At least 50% of the correct answers to the questions in the written test and the successful completion of the oral exam.

Objective

Informacion of Bankerosion of reservoir.
Riparian zone reconstruction to minimize uncontrolled scouring propagation.Specification of factors causing generation and propagation of scouring, detailed analysis and process of determination of these factors.

Specification of controlled instruction, the form of instruction, and the form of compensation of the absences

Vymezení kontrolované výuky a způsob jejího provádění stanoví každoročně aktualizovaná vyhláška garanta předmětu.

Lecture

2 hours/week, 13 weeks, elective

Syllabus of lectures

1. Basic division and concepts, global characteristics.
2. Properties of water, sediments, depostis and suspensions.
3. Characteristics of flow.
4. Erosion of deposits.
5. Deposition of sediments.
6. Transport of sediments – characteristics of motion.
7. Transport of sediments – continuity equation.
8. Transport of sediments – sediment discharge.
9. Measurements in rivers and reservoirs.
10. Influence of sediment dischrge and transport of sediments.
11. Modeling of sediment transport and river bed evolution.
12. Sediments and deposits in reservoirs.
13. Case studies.

Practice

2 hours/week, 13 weeks, compulsory

Syllabus of practice

1. Assignment of the sediment study of a river reach. Underlying data for the study.
2. Model of the uniform flow of water.
3. Model of the uniform transport of sediments: incipient motion of sediments, transport curve.
4. Model of the uniform transport of sediments: effective discharge, average annual discharge of sediments.
5. 1D model of the nonuniform flow of water.
6. 1D model of the nonuniform transport of sediments.
7. 1D model of the long-term nonuniform transport of sediments before construction of the dam.
8. 1D model of the long-term nonuniform transport of sediments after construction of the dam.
9. Calculation of the deposition of sediments in reservoir by empirically determined trap efficiency curves.
10. Comparison of the annual transport of sediments and the sediment deposition in reservoir by various methods.
11. Report of the sediment study of river reach.
12. Presentation of the sediment study of river reach.
13. Control of study duties. Credit.