Construction giant Grinaker-LTA's geotechnical division, Ground Engineering (GEL), has successfully completed an instrumented concrete Continuous Flight Auger (CFA) contract at the University of Botswana's Engineering Faculty in central Gaborone.
Ali Naidu was inaugurated as SAICE's president for 2010 on a memorable evening midway through the Institution's Engineering Planet Future Indaba, held at the CSIR in Pretoria from 16 - 18 March. Judging by the happy mood of the many people who attended, our new president is a popular man, and we wish him everything of the best for this year!
The maritime development of Port Natal (Durban) goes back to the 1820s when English explorers arrived in the Natal waters from Cape Town and established a foothold at the sheltered lagoon in the lee of the Bluff (Bender, 1988).
The first phase construction of the Port of Ngqura (PoN) Greenfields project commenced in September 2002 and finally came to fruition with the achievement of one of the most important milestones when the first commercial vessel, the MSC Catania, berthed at the PoN.
windward approaches to the Caribbean, in the 17th century Barbados was the largest port in the Western hemisphere. By the end of the 19th century there were still some 1 500 vessels a year calling at Bridgetown. The estuarine mouth of the Constitution River, which enters the sea at Bridgetown, became a centre of ship repair and is still known as the ''Careenage'' - the place where ships were careened, i.e. beached and laid over for scraping, painting and repair.
The Cape Town Container Terminal Expansion Project currently being undertaken within the Port of Cape Town by Transnet involves marine, civil, electrical and mechanical engineering works in order to increase the container handling capacity of the Container Terminal and to accommodate and service larger container vessels.
The 861 km dedicated iron ore line between the mines in the Sishen area of the Northern Cape and the Port of Saldanha in the Western Cape is the backbone of South Africa's iron ore export. Saldanha is the only port in South Africa handling iron ore. A total of 96,2% of all iron ore produced in the country is exported, making South Africa one of the top ten exporters in the world and generating massive revenue for the country. As overseas producers are continually increasing their export quantities, this places pressure on South Africa to increase production and exports to remain relevant as a global producer.
In the 21st century, the use of railways has grown to make them the preferred choice for the transportation of heavy freight. Thus new demands are constantly being placed on our understanding of rail track infrastructure performance. Track engineers are challenged to be more cost-effective and to base their designs on the design life of the entire track structure. It is therefore necessary to promote research that will evaluate the components that affect track foundation performance and expected service life. With the increase in annual freight demand, the need arises to increase the gross vehicle mass and, in turn, the axle load of freight wagons.
The Nasrec Transportation Hub roof is a boomerang-shaped steel structure constructed from circular hollow sections and I-beams. It is 211 m long. In section, the roof resembles an aircraftwing and incorporates bullnose-curved edges and various sheeting materials. Of structural and architectural interest are the columns which are at inclined angles, eventually leaning towards the Soccer City Stadium (which was a requirement from the architect). This causes significant axial tension forces to develop in the main longitudinal beams.
Much has been said about the legacy of 2010 and its intended spin-off for South Africa beyond the duration of the world's largest sporting event, hosted for the first time in Africa. Only time will reveal the extent of its benefits or drawbacks. However, what has been achieved to date on 2010 construction projects alone shows just how much can be accomplished with the right mix of skill and will.
Access to sufficient sources of energy is critical to our future growth and economic wellbeing. The South African government has prioritised performance in service delivery. This includes clear national energy efficiency targets for the electricity sector, to provide the entire country with electricity. The National Electricity Regulator is supervising the progress of all electricity providers towards meeting their targets.
Military-grade technology deployed to protect the Gautrain rail
Infraset manufactures 12 400 tons of replacement railway sleepers for Sishen-Saldanha ore line
Upgrades of Athlone, Heideveld and Langa Stations on Cape Town's suburban rail network
Sika strengthens and protects longest tunnel in the world