Extracted from text ... CIVIL ENGINEERING ? AUGUST 2005 3
THERE WAS A TIME When engineering issues were
simple. Our objectives were economic optimisation
within budgetary constraints. There were only two
parties involved, the engineers and the political
decision-makers. Water was plentiful and we could
plan and build magnifi cent water supply projects
without outside interference.
The 1980s were a turning point in the engineering
approach to water resource development.
Irrigation was no longer the major concern for
future development. It was also foreseen that we
would reach the maximum economic exploitation
of our surface water resources by about 2010.
There were now multiple users ..
Extracted from text ... L ETTERS
Mike Deeks was approached by
e-tv to be interviewed for their
Morning Edition programme on
23 June on the shortage of civil
engineers in South Africa
A PROPOS MIKE DEEKS ON E-TV
THE SHORTAGE OF ENGINEERS is not limited
to South Africa: we have the same problem in
As a South African expat working abroad,
it amazes me to hear presidents of the relevant
institutions forward all types of 'reasons' for the
shortage, but invariably missing the point.
Engineers are not business minded. As such,
they are their own worst enemies. They often
undercut each other and ..
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 6
TO TRY AND SEPARATE Jaana the business
achiever from Jaana the mountaineer seems
almost impossible. In both these roles she
thrives in the face of challenges, meticu-
lously strategising and planning her assault,
putting in the maximum physical and
mental effort, negotiating and managing the
pitfalls, and fi nally, at the peak of sweet suc-
cess, already casting her eye toward the next
obstacle to be conquered.
The oldest of three children, Jaana grew up
in a home that offered much mental stimu-
lation. 'My dad was a professor of Materials
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005
Text Will Alexander
Why drag the chariot wheels?
'Why drag the chariot wheels?' wrote Sir William Willcocks in 1903. 'Let the South African governments confine themselves to the boldest projects.' He advocated three bold projects on the Orange River. The first was an 18 m high diversion weir at the Van der Kloof site and a 240 km long canal to irrigate land as far as Prieska. The second was an 18 m high diversion weir at Prieska to carry water into the Hartbees River valley, ..
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 12
Text Jeremy Boswell, Bill Wallace, Peter Boswell, John Boyd, Ike van der Putte, Lorna Walker and Sally-Ann RigbyFIDIC Sustainable Development Task Force References available on request
Project sustainability management
Translating words into action
THE CONCEPT OF SUSTAINABLE DEVELOPMENT is changing the way people think about development and its effect on the environment and society. It defines a new development pathway - one on which society can maintain and improve the current quality of life without jeopardising the ability of future generations to maintain and improve their quality of life.
The imperative ..
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 16
THE CITY OF CAPE TOWN was formed in
2000 through the amalgamation of seven
former municipal local councils (MLCs)
in a single metropolitan council (unicity).
Solid waste services that are provided by
the new metropolitan council include the
bulk disposal service of the former Cape
Metropolitan Council as well as the collec-
tion and cleaning functions of the other six
The city's population of approximately
3, 1 million is growing at an estimated 1, 6 %
a year, while the waste being disposed of is
growing by an estimated 4, 5 % ..
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 18
ENGINEERING WORKS, particularly capital-
intensive projects, consume oils and grease
at rates that are incomprehensible to the
ordinary person. One major South African-
based mining fi rm alone consumed 5, 8
million litres of oils and 280 000 kilograms
of grease in 2004. Even the smallest civil
engineering contractor, with a solitary tired
TLB, makes use of an occasional oil change.
But where does this lake of hydrocarbons
all end up? Consulting engineers dealing
with local environmental legislation com-
monly come across, or indeed generate state-
ments in environmental management plans
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 20
Text Alistair James, Steve van Niekerk and Brandon StobartMetago Environmental Engineers (Pty) Ltd
Mine closure planning - time for a holistic
As a result of the requirements in the new Mineral and Petroleum Resources Development Act 28 of 2002 and Regulation 527 promulgated in terms of the said Act, consultants are increasingly being called upon by mines' environmental managers to estimate the mines' current (premature closure) and end-of-life (post planned closure) liability for residual and latent impacts of mining operations. Typically, this involves:
a site visit entailing a brief inspection of ..
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 22
AFTER MANY YEARS of effort, the fi rst
waste cell at the newly constructed
Roundhill landfi ll is operational. The
Buffalo City Municipality has developed
a landfi ll site for the disposal of local
general waste and regional low hazardous
waste, which was initiated by the 1989
Environmental Act requiring licensed land-
fi ll sites for waste disposal.
The last eleven years has seen a number
of potential sites identifi ed and ranked and
the prescribed feasibility study completed in
1998 with a permit being obtained in 2000.
As funds have become available, construction ..
Extracted from text ... 23
Kingston Vale a win-win solution
IN 1999/2000 THE MANGANESE METAL COMPANY embarked on the process of identifying a suitable site and obtaining regulatory approvals for a new hazardous residue management facility in the Nelspruit area, subsequently named the Kingston Vale landfill site.
The company appointed Golder Associates to undertake four environmental legal processes involved in the project: EIA authorisation, the granting of water use licenses as well as a waste disposal permit, and re-zoning. A single integrated public consultation process meeting the requirements for each individual legal process was designed and accepted by key authorities and stakeholders.
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 24
WITH THE HIVE OF ACTIVITY taking place, inter alia, in the civil engineering construction industry, it is inevitable that disputes will arise between the contracting parties.
In this article the discussion will centre on the various forms of dispute resolution sometimes referred to as alternative dispute resolution, or ADR.
The most common forms of ADR are negotiation, adjudication, mediation and arbitration.
Negotiation is a voluntary process whereby two or more parties with actual or per-
ceived differences seek to resolve their dif-
ferences without the use of a third party.
The rules of ..
Versatile products from old bottles
<br>WSP Environmental introduced
<br>Delivering on bulk water supply projects
<br>More than US$2 million to be awarded for sustainable construction design
<br>New life insurance product engineered for professionals
<br>MikroPul wins second environmental contract at Holcim's Dudfield plant
<br>Be responsible or face the consequences
<br>Banks of the Apies stabilised
<br>Winner of 2005 J.D. Roberts Award
<br>Concrete sleepers for maximum durability on West Coast
<br>Unique concrete used for Sioule Viaduct
New tender procedures for municipalities
<br>Call for nominations : geotechnical division awards 2005
<br>Civil engineering skills in local government
<br>International and local learners 'bridge
the gap' at the SAICE International
Bridge Building Competition ...
<br>A perspective on new international trends and thinking
<br>Dawie's chronicles of his recent 'sabbatical'
Extracted from text ... SIVIELE INGENIEURSWESE ? AUGUSTUS 2005 40
Event Date Venue Contact
General Conditions of
Afternoon Lecture Course
Short Course on Coastal
Public Participation in
Developing CM Strategies
Landfi ll 2005 Conference
30 August - Umtata
31 August - East London
1 September - Port Elizabeth
18-20 September 2005
20-21 October 2005
Course will be presented
on Monday, Tuesday &
Deadline for abstracts
20 July 2005
Umtata Country Club
East London Golf Club
PE Tech Conference Centre
In Africa designers of grit channels to treat the waste flows from small communities must take cognizance of high grit loads and a lack of killed operating personnel. With parabolic channels it is sometimes difficult to ensure adequate grit storage space without disrupting the parabolic cross-section. Proportional flow weirs tend to clog. In this paper the theory and design of grit channels with rectangular cross- section providing any desired storage space and with flow control by means of the Parshall flume are discussed. Installations in Zambia indicate satisfactory operation with unskilled operators.