BMA BLACKWATER COAL HANDLING
BHP Mitsubishi Alliance (BMA)
Mar 08 – Nov 08
Industrial Demolition; and Asbestos and Hazardous Material Removal
The scope of work of this Major Projects Group (CMA Corp) project included the removal and demolition of the North Coal Handling and Preparation Plant (CHPP), located on the northern end of Blackwater Mine.
The majority of the plant was isolated from the rest of the site, with the exception of the rail loading station and the tailings discharge pipes. The demolition site was located within the operational plant and Major Projects Group (CMA Corp) ensured that normal operations are not disrupted during the demolition.
Working at heights over a live rail line;
Proximity of the demolition works to an operational site; and
Requirement for the Primary Rolls Crusher (Pennsylvania Crusher) to be moved from its existing concrete pit as a complete unit and transported to Blackwater Museum, approximately 30 kms away.
The demolition was carried out in two stages using a team of 12, with an additional 5 member team carrying out the asbestos removal. Stage 1 consisted of the asbestos removal and demolition of the heavy vehicle workshop and the 2 storey mine offices building.
Stage 2 was the demolition of the CHPP itself; the remaining miscellaneous buildings; diesel tanks; magnetite pits; wash plant workshop; reject bin; multiple conveyors; rail loading station; electrical sub station; light towers (removed and stored); bath house; water treatment plant, and the lube bay.
The project works were conducted with a 160t excavator with grapple & shear attachments; a 48t excavator with hammer, bucket and grabs; 35t excavators with magnet/hammer/grapple & shears attachments; a 35t articulated dump truck; a 160t crane; a 4-5t Manitou telescopic handler, and a 86t hydraulic boom lift.
During the project some 5,000t of concrete were removed, along with 3,620 tonne of steel and 368 tonne of non-ferrous. Approximately 4000m3 of contaminated soil was removed disposed of in an approved, licensed disposal facility.
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