Statistical analysis of the stability number adjustment factors and implications for underground mine design. (September 2016)

• Record Type: Journal Article
• Authors: Vallejos, J.A.; Delonca, A.; Fuenzalida, J.; Burgos, L.
• Is Part Of: International journal of rock mechanics and mining sciences. Volume 87(2016:Sep.)
• Page Start: 104
• Page End: 112
• Publication Date: 2016-09
• Subjects: Mathews stability graph -- Open stope design -- Statistical evaluation -- Stress factor -- Deep underground mine; Rock mechanics -- Periodicals; Soil mechanics -- Periodicals; Mining engineering -- Periodicals; Roches, Mécanique des -- Périodiques; Sols, Mécanique des -- Périodiques; Technique minière -- Périodiques; 624.151305
• DOI: 10.1016/j.ijrmms.2016.06.001
• Languages: English
• ISSNs: 1365-1609

Abstract

Highlights: Evaluation of the significance of the adjustment factors on the Mathews method. Use of a contingency matrix and a performance metrics analysis. Proposal of a new rock stress factor A less conservative than the original one. Other factors did not improve the significance of the method compared to the original. Proposed rock stress factor leads to larger size stopes.