Courses

Flood estimation

and storm water

drainage for roads

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.

 2

Flood calculations

and Free surface

flow (HEC-RAS)

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 focuses 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.

 4

Pumping station

design

Discussion of the various hydraulic and mechanical aspects of pump stations that is

undertaken during 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 and pumping systems
• Pumping principles and pipeline characteristics
• Pump selection, type of pumps
• Pipework, valves and water meters
•Sump design and super structures

 3

Transients in pipe

systems

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.

 4

Pipeline optimization and design

The course focuses 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:

– Pipe hydrology

– 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

– Croth 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

 5

Water supply and

waterborne

sanitation systems

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, sustainable 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 sanitationsystems 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.

 3-4

Water distribution

modelling

This course provides an introduction to the hydraulic modeling of water distribution systems. The basics of water distribution modeling are covered and all the different components of water distributions systems are discussed. EPANET is a 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 modeling 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 throughout the network during a simulation period. The course covers the basic theory followed by practical computer sessions strengthening. material covered.

 2

Urban drainage

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

 2

SAICE 2-day Network Analysis and Introduction to Surge Analysis course

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.

 2

Flood hydrology

and climate change

impacts

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.

 4

Free surface flow

and dam break

analysis

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-RASsoftware package will be reviewed and demonstrated by performing one-dimensionalhydraulic calculations for steady and unsteady flow conditions as well as dam breakanalysis. A number of practical problems will be discussed and solved utilizing thesoftware programs. This will acquaint participants with background and confidenceto conduct varied flow simulations.

 4

SAICE-DFC One-day Pipeline Design Course

The course focuses on a review of the hydraulic theory required for the design of pipeline systems. Aspects which will be covered include the hydraulic principles,optimum selection of the required pressure class and diameter, review of the pipeline components for effective operation, pressure control and an introduction to dynamic pressures and alleviating options. The participants will be guided through worked examples to reinforce the principles and grow confidence in the design of pipe systems. The course material includes free utilities and software to assist in the analyses of pipe systems.

Programme

 1

Pipeline Design, Operation and Maintenance Course

The focus in this course will be on the practical aspects of pipeline design, operation and maintenance. Other aspects which will be discussed include: pipeline hydraulics, surge analysis, pipeline component design, pipeline installation, life cycle costing, testing and operation of pipelines and inspection technologies for pipelines.

 4

Pump Station Design

The course will focus on the theory, analyses and practical problems related to the design of clear water pump stations.The basic theory of pump selection, energy efficiency, operational control, valve selection, life cycle cost assessment,case studies and dynamic pressures will be reviewed. Delegates will be assisted to solve a number of practical problems related to pump station design. This will familiarize participants with the topic and provide confidence to undertake the design of a pump station.

– Pumping principles and pipeline characteristics

-Type of pumps and pump selection

– Minimum flow requirements and priming systems

– Pump station layout

– Suction side design and reducer selection

– Standards for the design of pump sumps, submergence and pipe work

– Valve selection, positioning and working (isolating, non-return, control, air valves and pump control valves)

– Electrical design and instrumentation requirements

– Variable speed drivers

– Simplified surge analysis

– Life cycle costing

– Acceptance testing, Operation Manuals and Tender Specifications

– Various practical case studies presented throughout the course, reflecting the typical practical problems.

Course solutions

 4