http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 17.80Change: 0.18
R/$ = 15.83Change: -0.02
Au 1233.95 $/ozChange: -19.80
Pt 957.50 $/ozChange: -5.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters About Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Aug 03, 2012

Midrand stormwater piping installation progressing

Back
Construction|Waterfall City|Building|Concrete|Flow|Housing|Installation|Labucon Resources|Pipe|Pipes|PROJECT|Projects|Rental|Resources|Road|Roads|Rocla|Water|Flow|Pipes|Road Infrastructure|Juskei River|Craig Waterson|Infrastructure|Johann Van Niekerk|Sias Swart|Pipe
Construction||Building|Concrete|Flow|Housing|Installation|Pipe|Pipes|PROJECT|Projects|Rental|Resources|Road|Roads|Rocla|Water|Flow|Pipes|||Infrastructure||Pipe
construction|waterfall-city|building|concrete|flow-company|housing|installation|labucon-resources|pipe-company|pipes|project|projects|rental|resources|road|roads|rocla|water|flow-industry-term|pipes-industry-term|road-infrastructure|juskei-river|craig-waterson|infrastructure|johann-van-niekerk|sias-swart|pipe
© Reuse this



One of the largest infrastructure developments in Gauteng, Waterfall City, has been supplied with 1 900 t of precast concrete stormwater pipes by precast concrete specialist Rocla to drain the area.

The progress of what is set to become Midrand’s new central business district is overseen by developers Atterbury Property and will comprise 800 000 m2 of rental space when the project is completed in 2018.

The stormwater piping project began in November last year and was initially planned for completion in November this year; how- ever, various additions to the project resulted in the completion date for the overall stormwater piping project being moved to early 2013.

Rocla was initially contracted to supply 1 550 t of stormwater piping, but was asked to provide an additional 350 t. The storm- water piping is also being extended to an adjacent housing development.

The installation of all piping at Waterfall City is well advanced. Other aspects of the project, such as the construction of roads, will be completed by early next year.

Construction company Labucon Resources is building the roads according to Johannesburg Roads Agency (JRA) standards.

Rocla sales executive Johann van Niekerk says the size of the interlocking joint pipes, which weigh up to 7.5 t each and vary in diameter from 450 mm to 1 950 mm, was a challenge, as large trenches had to be dug to accommodate their size and volume.

Labucon Resources project site manager Sias Swart adds, however, that the pipes posed no quality issues and the quick supply from Rocla allowed for swift installation.

“It was important that the material was supplied as quickly as possible so that we have enough time to start building the roads, which will start soon.”

Once the roads have been built, the JRA will take over responsibility for the stormwater and road infrastructure.

Meanwhile, Swart points out that one of the challenges experienced during the stormwater piping installation was groundwater, which produced a high water table in areas that were being excavated.

To manage and prevent structural problems between the trenches and the piping, bidem sheeting and 150 mm of stone bedding were placed around the piping.

The bidem sheeting was installed on embankments above the pipes to prevent ground- water from penetrating beneath the road surface material.

The stone bedding provides stability for the pipes and prevents soil movement from exert- ing stress on the pipe joints.

Groundwater was also pumped out of trenches and the area was laid with concrete.

The stormwater pipes will drain the site and release the water into three channels, all of which will eventually flow into the Juskei river.

To prevent soil erosion, Rocla supplied the precast wingwalls required for the project.

The wingwalls direct the water into and out of pipes, reducing turbulence and improving the hydraulic capacity of the conduit, says Rocla sales and marketing director Craig Waterson.

“Precast wingwalls are equipped with a separate concrete toe, which keys the entire unit to the ground and prevents any movement, which also reduces the risk of scouring the soil below or to the side of the toe,” he explains.

The wingwalls were introduced to the South African market in June, last year, and Waterfall City was one of the first projects in Gauteng where these have been used, says Van Niekerk.

Rocla will also supply manholes, which are installed at the points where the pipes change direction.

The stormwater pipes, wingwalls and manholes are manufactured at Rocla’s premises in Roodepoort.

Edited by: Chanel de Bruyn
Creamer Media Senior Deputy Editor Online
© Reuse this

To subscribe email subscriptions@creamermedia.co.za or click here
To advertise email advertising@creamermedia.co.za or click here
 
Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Pipes and Tubes News
Article contains comments
WATER PIPELINE UPGRADING PVC and HDPE pipes provide long-term water-saving solutions, reducing the impact of insufficient rainfall
The Southern African Plastic Pipe Manufacturers Associations (Sappma) has been pushing for long-term water-saving solutions over the past four years through its promoting that the existing water pipeline network infrastructure, which comprises old cement, steel and...
Local industrial equipment, electrical and mechanical components supplier Elquip Solutions together with Taiwanese manufacturer YLM, is bringing the best in global tube-bending technology to the local industry. YLM is a specialised computer numeric control (CNC) and...
More
 
 
Latest News
Updated 10 minutes ago The drought in Southern Africa could become one of the worst on record should the current below-normal rainfall continue, the United Nations (UN) World Food Programme said this week. The El Niño conditions presently being experienced in the region had resulted in a...
Updated 27 minutes ago Kelibone Masiyane has been appointed the new MD of PPC Zimbabwe, succeeding Njombo Lekula, who had recently been redeployed as MD of PPC’s international operations. Masiyane would be supported by new PPC commercial director Iain Sheasby and new PPC GM of finance...
Updated 31 minutes ago Government says it hasn’t yet selected the “lead agent” for its R740-million municipal broadband project, despite indications that Telkom could win the deal. At the 2015 State of the Nation Address (Sona), President Jacob Zuma said government had “decided to...
More
 
 
Recent Research Reports
Construction 2016: A review of South Africa's construction industry (PDF Report)
Creamer Media’s Construction 2016 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; key participants; local demand; geographic diversification; corporate activity; black economic...
Energy Roundup – February 2016 (PDF Report)
The February 2016 roundup covers activities across South Africa for December 2015 and January 2016 and includes details of a Government Gazette notice that confirms Cabinet’s decision to move ahead with the 9 600 MW nuclear procurement programme; State-owned power...
Energy Roundup - December 2015 (PDF Report)
The December 2015 roundup includes details of State-owned utility Eskom’s application to claw back R22.8-billion; South Africa’s ranking as an investment destination for renewable energy; and a nuclear expert’s thoughts on reactor designs for South Africa’s nuclear...
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
 
 
 
 
 
This Week's Magazine
WIDENING FLEXIBILITY The trailers have a 3-m-wide (2-file) and 4.3-m-wide (2-file) configuration
Lifting, transporting, installing and ballasting solutions provider Ale has expanded its global fleet of trailers and invested in the latest range of widening trailers that can be mechanically widened from 3 m to the desired width for any project. Ale ordered 48 axle...
The market for the BMW 7 Series in South Africa differs quite significantly from the rest of the world. China, the US and the Middle East almost exclusively buy the long-wheel-base version, using the German manufacturer’s luxury high-end sedan as a chaffeur-driven...
January new-vehicle sales fell by 6.9%, to 48 615 units, compared with the same month last year. Statistics released by the Department of Trade and Industry show that the domestic new passenger-car market declined by 6.1%, to 34 936 units, compared with 12 months ago.
Information technology (IT) equipment and infrastructure multinational Dell is providing open infrastructure systems for clients so that they can use any systems, including innovative new systems, that suit their business needs, says Dell Europe, Middle East and...
South Africa’s State-owned defence industrial group, Denel, has set up another international partnership, based in Hong Kong. This new subsidiary is Denel Asia and it is a joint venture (JV) with South African private sector company VR Laser.
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $149 Close
Subscribe Now for $149