n IMIESA - The world's tallest headgear : construction
|Article Title||The world's tallest headgear : construction|
|© Publisher:||3S Media (Pty) Ltd|
|Publication Date||Jan 2006|
|Pages||29 - 30|
Extracted from text ... IMIESA JANUARY 2006 - 29 In a truly astonishing feat of engineering, concrete was pumped 109 metres above ground for the construction of what is believed to be the tallest concrete mining headgear in the world, recently completed at Impala Platinum's 16th shaft near Rustenburg. Ian Connellan, site agent for Murray & Roberts Construction, says the headgear - which has become a new landmark on the Rustenburg skyline - has a footprint of 20 x 21 m and a total height of 132 m, of which 109 m lies above terrace (bank) level. The wall thickness ranges from 550 ..
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