28th International Conference on Ground Control in Mining, Morgantown, West Virginia, July 28–30, 2009 Authors: D. Conover and T. Ross (AAI) and S. Britton (Baja Mining Corp.) The El Boleo [...]
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 [...]
2002 SME Annual Meeting, Phoenix, Arizona, 25–27 February 2002 Authors: J. F. T. Agapito and L. J. Gilbride (AAI) High horizontal stresses were recognized to impact roof stability more than 60 [...]