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Sunday, July 04, 2010 |
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Earthworks @ Kusile
:: News
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Source: Kurt Behm
Stefanutti Stocks is the main contractor for the bulk and restricted excavation and also undertakes the blasting for the JV. They started on site in February 2009. Included in their scope of works is the back filling, paving and access roads in the power block.
“The busy work environment, the proximity of the work areas and people to each other, as well as the depths of the excavations require precision and attention to detail and procedures,” says Kurt Behm from the Stefanutti Stocks Earthworks division.
Environmental
“The wetlands on either side of the power station are very sensitive areas,” continues Kurt. “We are installing gabions in the storm water trenches, specifically to prevent contamination of the water systems and the Wilge river.”
Within the yard alien vegetation is being removed and erosion control measures include sodding the banks of the platforms and putting stonewalls in the drains to slow the flow of the water.
Further environmental work is in the catchment area for all the storm water on the western side of the site. This involves a very large earth dam with an overflow system to trap silt. In a bid to counteract the erosion, energy dissipation structures (rock pitching with grouting) are being installed where the drains meet and the outflows are. This will break the force of the water, slowing it down and stabilizing the ground.
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