http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.95Change: -0.05
R/$ = 12.73Change: 0.01
Au 1082.59 $/ozChange: -7.27
Pt 984.00 $/ozChange: -4.00
 
 
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 Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Dec 13, 2007

Gautrain to start tunnelling with ‘Imbokodo' machine in January

Back
Construction|Africa|Design|Gautrain|PROJECT|Road|System|Trucks|Tunnelling|Africa|Gautrain|Tunnelling|Gautrain|Gautrain|Infrastructure|Power
Construction|Africa|Design|Gautrain|PROJECT|Road|System|Trucks|Tunnelling|Africa|Gautrain|Tunnelling|Gautrain|Gautrain|Infrastructure|Power
construction|africa-company|design|gautrain-company|project|road|system|trucks|tunnelling-company|africa|gautrain-facility|tunnelling|gautrain-organization|gautrain|infrastructure|power
© Reuse this Tunnelling its way 3-km from Rosebank station to Park station in central Johannesburg, will be the Gautrain's very own R300-million tunnel boring machine (TBM) - ‘Imbokodo' - which was designed and custom built in Germany, by Herrenknecht engineers, specifically to cope with the complex underground geological conditions south of Rosebank.

Set to start tunnelling in January 2008, the 145-m long, 885 t Imbokodo, with its 13 gantry trailers, is expected to take 14 months to tunnel the 3-km, and will work 24 hours a day, seven days a week.

‘Imbokodo' (literally, ‘the hard rock that grinds') was the name chosen for South Africa's TBM, in the spirit of the women who marched to Pretoria in 1956 singing "Wathina abafazi, wathina imbokodo" ("If you strike a woman, you strike a rock").

Traditionally, tunnel boring cannot start until local people have chosen a suitable name for the TBM, which, according to custom, and to signal good luck for the project ahead, must be a woman's name.

Gautrain Management Agency CEO Jack van der Merwe said that the name Imbokodo was a symbol of South Africa's heritage of willpower in its drive to overcome obstacles.

The TBM, which uses electricity as its power source, took 12 months to design and build. At the front of the machine is a rotating cutting wheel, which excavates the ground, and behind the wheel is a chamber where the excavated material accumulates, before being extracted by a pressure relief discharge system called a ‘screw conveyor'. Excavated soil is then transported on a conveyor belt back up to the Rosebank south shaft, where it will be picked up by tipper trucks.

Urban tunnelling requires that the ground surface is left undisturbed, particularly since it has to be done below deep infrastructure foundations. A computerised guidance monitoring system is used to steer the machine accurately underground.

The trenchless closed construction method has its advantages, and life above ground will continue with no economic losses, no road diversions and traffic disruptions. Noise pollution and dust can be avoided, and no groundwater lowering is necessary. Construction is largely independent of weather conditions.

Once the tunnel linking Rosebank and Park stations is complete, it is unclear what will become of Imbokodo - it could be left underground once its work is finished, or, if economically feasible, it could be made available for use on another project elsewhere in the world.

As the machine cannot move backwards, getting it out from underground could prove very costly, and it is a possibility that "once she has submerged into the belly of the earth it is better to let the old lady lie there when her work is finished", Gauteng premier Mbazima Shilowa commented at the naming ceremony.

Edited by: Mariaan Webb
Creamer Media Senior Researcher and Deputy Editor Online
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Rail News
OPERATOR SAFETY NO.1 The Slogging Hammer is significantly safer than the traditional method of using a wrench and sledgehammer to remove nuts and bolts
Nuts and bolts loosening, tightening and torqueing solutions developer Slogging International’s Slogging Hammer is currently undergoing on-site trials at a railway project for a West African oil and gas exploration company. If these trials prove to be successful,...
GIBELA MANUFACTURING FACILITY The R1-billion manufacturing facility in Dunnottar, Johannesburg, will have a dedicated training facility, which will train 19 000 artisans
State-owned passenger rail operator the Passenger Rail Agency of South Africa’s (PRASA’s) R51-billion locomotive build programme, which is being carried out by black-empowered locomotive manufacturer Gibela Rail Consortium, will need about 1 375 skilled artisans to...
NEW PRODUCTION LINE Aberdares’ new production line employs a 120 mm, 24:1 length-to-diameter ratio extruder, manufacturing up to 140 m of cable a minute
South African cables manufacturer Aberdare Cables earlier this month launched its latest production line at its Pietermaritzburg manufacturing plant, in KwaZulu-Natal. The new line, supported by the Department of Trade and Industry’s (DTI’s) designation programme,...
Article contains comments
More
 
 
Latest News
Updated 27 minutes ago Africa's largest steelmaker ArcelorMittal South Africa said on Friday its half-year losses widened amid lower international demand and a weak economy in its home market. Its headline loss per share rose to nearly 25 cents per share for the six months ended 30 June...
Former PRASA CEO Lucky Montana
Updated 1 hour 13 minutes ago Former Passenger Rail Agency of South Africa (PRASA) boss Lucky Montana on Thursday laid fraud charges against two executives and a board member of the state-owned company, as well as two directors of a private security company. The charges were laid at the Hillbrow...
Updated 1 hour 31 minutes ago Daimler truck test engineer Dirk Stranz pushes one button and then retracts his hands from the steering wheel of the Mercedes-Benz Future Truck 2025. “And now the truck is driving itself.” It is unsettling to see the steering wheel move unaided as the truck gently...
More
 
 
Recent Research Reports
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
Real Economy Insight: Automotive 2015 (PDF Report)
Creamer Media’s Real Economy Year Book comprises separate reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, gold, iron-ore and platinum sectors.
Real Economy Insight: Water 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Construction 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Electricity 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Road and Rail 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
 
 
 
 
 
This Week's Magazine
Daimler truck test engineer Dirk Stranz pushes one button, and then retracts his hands from the steering wheel of the Mercedes-Benz Future Truck 2025. “And now the truck is driving itself.”
The statutory body responsible for skills development and support in the banking sector, BANKSETA, was investing R68-million in the capacity building project of the University of Venda (UniVen), announced Bankseta company secretary Caroline King at a media event in...
LIONEL MOYAL Cloud services providers must compete against other cloud services providers for business by providing up-to-date systems and services
Legacy information technology (IT) systems are becoming increasingly obsolete because of the maturity, efficiencies and cost effectiveness of cloud-based IT services, says information and communication technology major T-Systems subsidiary Intervate head Lionel...
ARMANDÉ KRUGER Balancing the collection and processing of data must be aligned to strategy
Many complementary services enable companies to derive broad value from data inside and outside them. The complexity of data management means that companies’ strategies determine the various data systems and functions they will use, says PBT Group regional sales...
The South African Civil Aviation Authority (SACAA) has announced that it had awarded the country’s first remotely piloted aircraft systems (RPAS) pilot’s licence. It was issued on Friday, July 10, to SACAA employee and qualified commercial pilot Nicole Swart,...
 
 
 
 
 
 
 
 
 
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 $96 Close
Subscribe Now for $96