THE PROBLEM
To gain access to the location of the new port facilities, the construction of a temporary causeway was required across the mangrove mud flats.
THE SOLUTION
After extensive discussions, a design solution was agreed upon so that the 3.2km temporary causeway could be constructed. The temporary causeway had a footprint width of 14m and was constructed using a base layer of Tensar biaxial geogrid, augmented by a geotextile separator.
PROJECT DESCRIPTION
Austeel was granted environmental approval by the federal government for a new Iron Ore mine to operate in the Pilbara region of north western Australia. The mine’s location is approximately 67kms south west of the Karratha townsite.
China Metallurgical Group Corp (MCC) were awarded the contract to develop the $1.98 billion mine which included the construction of the magnetite mine, desalination plant, thermal power plant and port facilities. The Tensar distributor was contacted by Geosite Geotechnical consultants to assist in finding a practicable solution for the construction of the temporary causeway.
