Liberty Industrial was retained to deconstruct and demolish redundant infrastructure at Centennial Coal’s Awaba Colliery in Awaba, NSW.
The project involved the deconstruction of an 180 metre conveyor for reuse; a steel structure over a 800 tonne coal handling bin; steel structure to the 500 tonne Coal Handling Bin and winder house utilising 200 tonne all terrain cranes; 80 tonne all terrain cranes and 25 tonne franna cranes (primarily consisting of dual crane lifts).
The project also required the demolition of the above ground concrete to the 800 tonne coal handling bin, coal handling plant, overland belt drift, main fan, and the structure above the No. 1 fan shaft.
The area surrounding the coal handling plant (2,500m2) was re-contoured to match the surrounding area, hydra mulch was applied to 4,500m2 of disturbed land to prevent erosion, and four mine shafts were sealed. The structures were systematically pulled to the ground in a controlled manner using a 38 tonne excavator fitted with a combination of hydraulic shear and grapple attachments. All the steel waste (430 tonne) that was generated was recycled. All concrete and brick waste was used to backfill redundant mine shafts. This was done with left over material that was stockpiled for such backfill works.
All demolition works were undertaken using a 38 tonne excavator fitted with a combination of hydraulic shear, hammer, grapple and bucket attachments.
Bricks and concrete were downsized using the hammer attachment in order to backfill the various redundant mine shafts around the site.
- All non-recyclable materials were disposed of at an offsite licensed disposal facility
- We re-contoured 2,500m2 of land surrounding the coal handling plant
- Hydra mulch was applied to 4,500m2 of disturbed land to prevent erosion