https://newsletter.en.creamermedia.com
Africa|Construction|Contractor|Electrical|Engineering|Mining|PROJECT|Raisebore|Steel|Surface|System|Trucks|Shaft Sinking|Raiseboring
Africa|Construction|Contractor|Electrical|Engineering|Mining|PROJECT|Raisebore|Steel|Surface|System|Trucks|Shaft Sinking|Raiseboring
africa|construction|contractor|electrical|engineering|mining|project|raisebore|steel|surface|system|trucks|shaft-sinking|raiseboring

Groundbreaking technique used to remove raisebore head

Aerial image of removal a raisebore head and base

Murray & Roberts Cementation removed a raisebore head and base

1st May 2025

     

Font size: - +

An innovative method used to remove a raisebore was successfully applied by specialist shaft sinking and mining contractor Murray & Roberts Cementation.

At the end of the raiseboring, or reaming, stage for Shaft 2 of Ivanplats’ Platreef project in South Africa’s Limpopo province, a solution was needed to remove the reaming head and avoid costly standing time.

Murray & Roberts Cementation senior project manager Fred Durand explained that an acceleration of the build plan at Shaft 2 had seen construction underway on the shaft’s headgear in 2024 – before the completion of raiseboring.

“When a reaming head reaches the surface at the end of a raiseboring process, we normally use a mobile crane from surface to help us dismantle the machine and to load it onto trucks for removal from site,” said Durand. “With the acceleration of the mine’s plan for Shaft 2 readiness, however, the construction of the headgear had been brought forward – so it was no longer feasible to position a crane in that area to remove the raisebore machine.”

The concept was to make use of a reeve block, or pulley block, system and winch which could be secured with limited steel work at the bank elevation.

“We prepared a proposal which described how reeve blocks could be secured to the sinking sheave wheel floor steel work by means of slings and beam clamps,” Durand continues. “We would then use an eight-tonne electrical winch, secured to the bank, to operate the reeve block system.”

The technical team were able to strip the raisebore machine and hoist it to the bank area and it was finally lifted onto the laydown area for removal.

Durand concludes that Murray & Roberts Cementation’s approach ensured that this engineering solution was applied safely and efficiently within a tight timeframe.

 

Comments

 

Latest Multimedia

Magazine round up | 23 May 2025
Magazine round up | 23 May 2025
Updated 5 hours ago

Latest News

Magazine round up | 23 May 2025
Magazine round up | 23 May 2025
Updated 5 hours ago

Showroom

VEGA Controls SA (Pty) Ltd
VEGA Controls SA (Pty) Ltd

For over 60 years, VEGA has provided industry-leading products for the measurement of level, density, weight and pressure. As the inventor of the...

VISIT SHOWROOM 
Weir
Weir

Weir is a global leader in mining technology. We recognise that our planet’s future depends on the transition to renewable energy, and that...

VISIT SHOWROOM 

Latest Multimedia

sponsored by

Option 1 (equivalent of R125 a month):

Receive a weekly copy of Creamer Media's Engineering News & Mining Weekly magazine
(print copy for those in South Africa and e-magazine for those outside of South Africa)
Receive daily email newsletters
Access to full search results
Access archive of magazine back copies
Access to Projects in Progress
Access to ONE Research Report of your choice in PDF format

Option 2 (equivalent of R375 a month):

All benefits from Option 1
PLUS
Access to Creamer Media's Research Channel Africa for ALL Research Reports, in PDF format, on various industrial and mining sectors including Electricity; Water; Energy Transition; Hydrogen; Roads, Rail and Ports; Coal; Gold; Platinum; Battery Metals; etc.

Already a subscriber?

Forgotten your password?

MAGAZINE & ONLINE

SUBSCRIBE

RESEARCH CHANNEL AFRICA

SUBSCRIBE

CORPORATE PACKAGES

CLICK FOR A QUOTATION







sq:0.267 0.369s - 305pq - 2rq
Subscribe Now