Molybdenum ore is mined by block caving methods at Molycorp’s Questa Mine. AAI has provided geotechnical consulting services to the mine since 1979 as follows: Evaluation of decline rock support requirements, and recommendations and implementation of a shotcrete and rockbolt system. Evaluation of ground stability and support requirements on the undercut, grizzly, and haulage levels [...]
Base Metals
Engineering Support for Start-up of Large Underground and Surface Copper, Cobalt and Zinc Operation—Baja, Mexico Starting in 2005 and continuing into 2011, Agapito Associates, Inc. (AAI) has provided the mining engineering services required to bring this large underground and surface mining operation into production. This industrial metals operation will have over 40 different mines exploiting [...]
Endeavour Silver Mining, S.A. Endeavour’s Guanacevi mines include one principal mine (El Porvenir) and one small mine (Alex Breccia). Mining is by overhand cut-an-fill in a classic, high-grade narrow, epithermal vein deposit. Through a site visit, AAI evaluated the existing ventilation systems and improvement options under consideration.
