http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.25Change: -0.07
R/$ = 10.58Change: -0.05
Au 1306.61 $/ozChange: 7.73
Pt 1486.50 $/ozChange: 13.00
 
 
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 Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Aug 16, 2012

Company Announcement: Esorfranki Geotechnical Begins Continuous Jacking Project

Back
Construction|DURBAN|Harbour|Natal|Africa|CoAL|Esorfranki Construction Limited|Esorfranki Geotechnical|Pipe|Pipelines|Pipes|PROJECT|Safety|Sookan And Associates|System|Tunnelling|Water|Africa|South Africa|Km Network|Pipes|Tunnelling|Drainage|Environmental|Byron Field|Moore Spence Jones|Water|Pipe|Pipelines
Construction|Harbour||Africa|CoAL|Pipe|Pipelines|Pipes|PROJECT|Safety|System|Tunnelling|Water|Africa||Pipes|Tunnelling||Environmental|Water|Pipe|Pipelines
construction|durban|harbour|natal|africa-company|coal|esorfranki-construction-limited|esorfranki-geotechnical|pipe-company|pipelines-company|pipes|project|safety|sookan-and-associates|system|tunnelling-company|water-company|africa|south-africa|km-network|pipes-industry-term|tunnelling|drainage|environmental|byron-field|moore-spence-jones|water|pipe|pipelines
Download PDF
Esorfranki Geotechnical (0.04 MB)
 

Esorfranki Geotechnical has begun a three month long continuous jacking operation in KwaZulu-Natal as part of part of an intricate new storm water drainage system being implemented to address land slippages caused by excess rainwater on Durban’s Bluff. The project requires the Esorfranki team to jack an inclined tunnel 130 metres long into loose sand.

The Department of Public Works gave the go-ahead in 2011 for a permanent storm water drainage system to replace a temporary system installed at the local military base 12 years ago. Excess storm water from the 8.01 ha site will be channelled via a 2 km network of underground piping into a 60 metre vertical shaft connected via the 130 metre long inclined tunnel to a sea outfall. The new system includes a series of 1.8 metre diameter caisson soakaways, up to seven metres deep, to dissipate storm water that cannot be channelled to the new shaft outlet.

The overall design of the storm water system has been undertaken by Sookan and Associates, with detailed design of the vertical shaft and the angled jacked tunnel executed by Esorfranki Geotechnical. Moore Spence Jones was appointed as the responsible geotechnical engineers. “The contract for the new storm water drainage system was awarded to us in November last year and includes the rehabilitation of a 1 000 m², 30 metre deep slip caused by water from a burst storm water pipe on the western side of The Bluff,” Byron Field, Esorfranki Geotechnical contracts manager, explains. “Water from the burst pipe caused a cascade of about 2 000 m³ of loose material to moved down the harbour-facing slope and cover railway lines serving the nearby bulk coal terminal.

“The tunnelling portion of the project presents an interesting challenge, owing to the loose running sand through which the tunnel is being jacked, as well as the length of the jack. This has meant that the jacking operation must run continuously from start-up in August, right through to December, when the tunnel will intersect with the vertical shaft.

As part of the project scope, Esorfranki Geotechnical will demolish the existing sea outfall on the beach and construct a new outfall structure which will be piled and socketed into rock. The installation of 2 km of storm water reticulation, with some pipes going as deep as four metres, has been sub-contracted to sister company, Esorfranki Pipelines. The reticulation element of the contract started in February 2012 and is on schedule for completion at project handover in June next year. As a separate element of the same contract, Esorfranki Geotechnical is rehabilitating a slippage on the western slope that occurred in 2009. This involves the installation of a series of geosteps comprising soil encased in geotextile and is being carried out at the lower levels.

Field says safety is a top priority on the project and to this end Esorfranki Geotechnical has implemented a new, internationally recognised safety system in terms of the OSHA 18001 regulation. And, in terms of environmental impact, the project is proving a challenging work site that requires the Esorfranki team to limit its impact on the natural vegetation as far as possible. After project completion, all working areas will be fully rehabilitated. Esorfranki Geotechnical, a division of Esorfranki Construction Limited, incorporates the former Esor Africa and Franki Africa and is the largest specialist civil and geotechnical contractor in South Africa and the most established in the Sub-Saharan Africa region.

Edited by: Creamer Media Reporter
Comment Guidelines
 
 
 
 
 
 
 
 
Other Announcements News
Since becoming part of Renttech South Africa in 2011, Kelmeg Lifting Services has enjoyed a strong growth trajectory, with manufacturing output increasing by 40% This is according to Rodney Young, Factory Manager at KLS, who was appointed at the time of the...
With rising costs in electricity generation, increased demand and frequent ‘black outs’ compounded by cable theft, the search for renewable energy power sources is becoming increasingly urgent.  Rand Technical Services , based in Tshwane, has added an exciting...
Microsoft has honoured the highest-performing Microsoft Dynamics partners for demonstrating exceptional levels of growth while delivering innovative solutions that have helped their customers drive their businesses forward. This was done during the recognition...
More
 
 
Latest News
The head of economics and trade at the Delegation of the European Union (EU) in Pretoria has acknowledged South Africa’s trade negotiators won important concessions in the long-running Economic Partnership Agreement (EPA) trade talks. But he says it was South...
Responding in writing to a recent Parliamentary question by the Democratic Alliance, Transport Minister Dipuo Peters has provided an update for each of the country’s 13 bus-rapid transport (BRT) systems, noting that each network is at a different stage of...
The South African Real Estate Investment Trust (SA Reit) Association has called on the Competition Commission to intervene in undesirable exclusivity clauses in retail leases that were allowing retailers to stifle market share. The association’s members, which...
More
 
 
Recent Research Reports
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
Real Economy Insight: Steel 2014 (PDF Report)
This four-page brief covers key developments in the steel industry over the past 12 months. It provides an overview of the global and South African steel and stainless steel markets, South Africa’s major steel producers and events that have shaped these markets.
 
 
 
 
 
This Week's Magazine
Multinational semiconductor chipmaker corporation Intel announced its national campaign to further acquire partners to drive its She Will Connect programme, an initiative that aims to expand digital literacy skills to young women in developing countries, further into...
South Africa's MeerKAT radio telescope array programme should get back on schedule within a few months. This assurance has been given by SKA South Africa (SKA SA) associate director: science and technology Prof Justin Jonas. Early last month, Science and Technology...
The Passenger Rail Agency of South Africa’s (PRASA’s) Metrorail service will remain a subsidised service following its current multibillion-rand rolling stock, station, depot and signalling upgrade programme. PRASA group CEO Lucky Montana has allayed fears that...
GARYN RAPSON Contaminated Land Provisions in the National Environmental Management: Waste Act No 59 of 2008 will open the door for court battles to determine who will be held liable for the remediation
The uncertainties around the remediation of affected areas as addressed in the Contaminated Land Provisions in the National Environmental Management: Waste Act No 59 of 2008 will possibly spark litigation and disputes between landowners and businesses, contractors...
South Africa is currently the largest component of the African Development Bank’s (AfDB’s) active portfolio in Southern Africa, comprising 62.5% of the bank’s $7.9-billion exposure to the 12-country region – the second largest beneficiary is Mauritius, which...
 
 
 
 
 
 
 
 
 
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