Rio Tinto, a British-Australian multinational metals and mining corporation, contacted Geovert , one of our customers in Australia, after the West Angelas pit suffered a significant high wall failure on the north wall of the Centre Pit North (CEPN). The strike of slip at the CEPN was 150m wide at the top and 270m wide at the toe and the crest was approximately 180m above the pit floor. The overhang remaining from the failure caused mining operations to cease in this section of the pit as the ore was quarantined beneath due to not being safe to access.
After detailed risk assessments the solution was the design of rockfall protection and slip remediation to be installed on the North wall of the CEPN, removing the overhanging Geohazard. The rockfall protection consisted of Geobrugg's TECCO® SYSTEM3 made of high-tensile steel wire.