The Cerro Matoso S.A. Ferronickel mine (CMSA) is located in Montelíbano –Córdoba, Colombia. Ausenco performed a study to review geotechnical stability to actual geometry and deposition conditions of the mine's Sajana Tailings Storage Facility (TSF).
The original tailings dam design included the use of cyclones to deposit material on the Sajana basin area. CMSA faced difficulties with these cyclones and was unable to use them. This change created uncertainty in the geotechnical performance and future behavior of the TSF embankment.
Ausenco conducted a geotechnical desk-top study for the Sajana TSF based on information provided.
Ausenco's scope of work included:
A detailed study including geotechnical exploration of actual field conditions and a monitoring plan was recommended.