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Course
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Description
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Days
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Select course
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Flood estimation and storm water drainage for roads
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Background
The Road Drainage Manual first published in 1981, has been fully updated revised and sections added by the South African National Roads Agency
Ltd (SANRAL) and published as “Drainage Manual, 5th Edition – Fully revised”
The manual has added sections on economics, subsurface drainage and diagrams and all other chapters are fully updated. In addition this
manual now falls in line with the new road classifications for South Africa that apply to all national, provincial and municipal authorities. The manual has also been expanded and is supported
by a suite of software packages.
Course objectives
The objectives of the course are to reflect principles, standards and procedures applicable to the hydraulic design and assessment of drainage problems and provide
guidance in solving drainage related problems. This will be achieved by reviewing the contents of the Drainage Manual
and reinforcing the understanding and application by problem solving.
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2
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Flood calculations and Free surface flow (HEC-RAS)
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In past courses the focus was on extreme floods and design philosophies In this course it was decided to return to the basics and present a practical course on flood calculation methods.
The course includes:
•Flood calculation methods (Statistical, deterministic and empirical)
•Theoretical and practical problems in the determination of catchment rainfall
•Alternative methods
for design flood estimation – empirical, statistical and process models.
Furthermore the course also focusses on the basic theory and practical applications of free surface flow. Aspects that are covered range from the basic theory of free surface flow, energy, momentum
and continuity as well as the use of the popular free software package HEC-RAS. The HEC-RAS River Analysis System Software is demonstrated in performing one-dimensional hydraulic calculations such as
steady and unsteady flow simulations. The capabilities of the software to analyse culverts and bridges, scouring at structures and dam break analysis are also demonstrated through practical
examples.
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4
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Pumping station design
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Discussion of the various hydraulic and mechanical aspects of pump stations that is undertaken during the planning and design phase.
•Pump selection and dimensioning of the components and pump station layout
•Discussion of good practice in pump station design.
•Performing a practical exercise of a pump station design.
ex pumping systems
•Pumping principles and pipeline characteristics
•Pump selection, type of pumps
•Pipework, valves and water meters
•Sump design and super structures
Exercise solutions - SABI course 2010
Exercise solutions - 26 - 28 January 2009 at University of Pretoria
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3
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Transients in pipe systems
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Transient flow assessment is a crucial part of the pressure class selection of pipes during the final design stage, preventing surge pressures, which in numerous cases results in pipe failures.
Foreseen and unforeseen operational circumstances can result in undesirable pressure conditions that should be analyzed for new pipelines, assessment of the upgrading of existing systems and
determining the influence and risk associated with planned operational changes. The use of the widely used Surge2000 computer software (www.kypipe.com) to analyze transients in pipe systems is
covered and problems solved in workshop sessions.
Course held 10 - 13 July 2012
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4
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Pipeline optimization and design
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The course focusses on the practical applications of pipeline design. Aspects that will be covered range from the basic theory of pipeline design, installation of pipes, design of specials,
optimization to the design of pumping system and the introduction to various applicable design software packages. A number of practical sessions are included in the course to acquaint participants
with the application of the knowledge. Topics presented include:
Pipeline hydraulics:
Pipe flow theory, losses and approach
Network analysis
Economic analysis, Life cycle analysis and optimization of systems
Pipeline design:
Material selection
Pipe class determination
Surface protection and lining systems
Structural analysis of pipes
Crotch plate, collar and wrapper design
Surge and water hammer
Pipeline component design:
Air valves – Sizing and positioning
Isolating, Non-return and Control valves
Water meters
Thrust block and anchor block design
Chamber design
Pipeline installation, testing and operation:
Laying and backfilling
Pipeline testing
Pipeline rehabilitation
New technologies
Recent course held 15-19 February 2010 at University of Pretoria
Solutions to practical exercises
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5
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Water supply and waterborne sanitation systems
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The general health of the population will be raised if people have access to basic water supply and sanitation. The vision of providing sanitation in South Africa as reflected in the Draft White Paper
on Water Services (DWAF, 2002) read as follows:
Water is Life, Sanitation is Dignity
1. All people living in South Africa have access to adequate, safe and affordable water and
sanitation services, practice safe sanitation and use water wisely.
2. Water supply and sanitation services are sustainable and are provided by effective and efficient institutions that are
accountable and responsive to those whom they serve.
3. Water is used wisely, sustainably and efficiently in order to promote economic growth and reduce poverty.
Water Supply and sanitation
has to be addressed in an integrated manner to achieve the vision for sanitation provision in South Africa. Conventional waterborne sanitation systems is usually perceived as the highest level of
service, but the lack of sustainable water in certain areas may warrant the consideration of alternative sanitation systems. The safe disposal of human excreta is vitally important in the control of
infectious and other communicable diseases and hence the construction of appropriate sanitation systems is paramount in contributing to the safe disposal of human excreta.
In the course the
theory and design practices of water supply and waterborne sewerage systems will be highlighted. Typical practical problems will be discussed and delegates will be guided through the solutions to a
number of problems. Guidelines for water supply in the rural environment and procedures to provide infrastructure and operational and maintenance frameworks will also be covered.
An
additional fourth day can also be attended where an introduction to the hydraulic modeling of water distribution systems will be covered, reflecting the basics of water distribution modeling and
reviewing the different components of water distribution systems. EPANET, which is public domain software, will be used for the modeling although the basic principles taught are applicable to any
water distribution modeling software.
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3-4
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Water distribution modelling
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This course provides an introduction to the hydraulic modelling of water distribution systems. The basics of water distribution modelling are covered and all the different components of water
distribution systems are discussed.
EPANET is public domain software, which may be freely copied and distributed. EPANET is used as demonstration software although the basic principles taught are applicable to any water
distribution modelling software.
EPANET is a computer program that does hydraulic and water quality simulations of pressurized water distribution systems. It can perform single and extended-period simulations. EPANET tracks the flow
of water in each pipe, the pressure at each node, the height of water in each reservoir as well as the concentration of a chemical concentrations throughout the network during a simulation period.
The course covers the basic theory followed by practical computer sessions strengthening the material covered.
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2
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Urban drainage
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This course provides an introduction to urban drainage. This is followed by an introduction to using EPA SWMM, for modeling the quantity and quality of storm water runoff produced from urban
areas. The topics to be covered include:
- Project Setup
- Constructing a SWMM Model
- Setting the Properties of SWMM Objects
- Saving and Opening Projects
- Running a Single Event Analysis
- Viewing Simulation Results
- Simulating Runoff Water Quality
- Running a Continuous Simulation
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2
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SAICE
2-day Network Analysis and
Introduction to Surge Analysis
course
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An introduction to the hydraulic modeling of water distribution systems will be covered, reflecting the basics of water distribution modeling and reviewing the different components of water
distribution systems. EPANET, which is public domain software, will be used for the modeling although the basic principles taught are applicable to any water distribution modeling software.
Transient flow assessment is a crucial part of the pressure class selection of pipes during the final design stage to prevent surge pressures, which could result in pipe failures. Foreseen and
unforeseen operational circumstances can result in undesirable pressure conditions that should be analyzed during the design of new pipelines, assessment of the upgrading of existing systems and
determining the influence and risk associated with planned operational changes. Aspects that will be discussed are the basics of transient flows, calculation procedures, selection of surge protection
devices and the use of the UPSurge.
The solutions to the course exercises can be downloaded below:
Download exercise solutions
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2
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Flood hydrology and climate change impacts
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A practical course on flood calculation methods and flood routing will be presented. The application of the theory working through practical exercises will be undertaken.
Flood calculations methods such as deterministic, empirical and statistical analysis will be applied in the exercises. The popular freeware software program, EPASWMM will be demonstrated and
introduced as a tool for the modeling of urban drainage system. The EPA Storm Water Management Model (SWMM) is a dynamic rainfall-runoff simulation model used for single event or long-term
(continuous) simulation of runoff quantity and quality from primarily urban areas. After this course, you will be in a position to calculate the design flood and perform a simulation, routing this
through a storm water system.
Recent course held - 31 January to 3 February 2012 at University of Pretoria
Download section:
Exercise solutions
Presentations (45MB)
Exercise E9 - Excess flow handling
Water Resource Development and Management (WJR Alexander) (90MB)
Water Resource Development and Management - Appendices (WJR Alexander) (63MB)
Climate change and its consequences - an African perspective (WJR Alexander) (11MB)
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4
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Free surface flow and dam break analysis
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The course will focus on the basic theory and analyses of practical free surface flow problems. The basic theory of free surface flow, mass;
energy and momentum conservation, will be reviewed and the application to determine flood lines, culvert sizing and bridge flow hydraulics will be covered.
The widely used HEC-RAS software package will be reviewed and demonstrated by performing one-dimensional hydraulic calculations for steady
and unsteady flow conditions as well as dam break analysis.
A number of practical problems will be discussed and solved utilizing the software programs. This will acquaint participants with background
and confidence to conduct varied flow simulations.
Recent course held - 7 to 10 February 2012 at the University of Pretoria
Exercise solutions
Presentations
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4
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