Production Potential Of Nchanga Underground Mines Collapsed Blocks
Journal: International Journal of Scientific & Technology Research (Vol.4, No. 9)Publication Date: 2015-09-15
Authors : Eugie Kabwe; Wang Yiming;
Page : 289-301
Keywords : Index Terms Abutments; block caving; bolting; fault zone; mining method selection2665292MRMR; Nchanga Mine; scrapper drift; UCC.;
Abstract
Abstract the main purpose of this study is to recommend modification to block caving at Nchanga ensure that it meets anticipated production levels and address the adverse ground conditions of the intensely fractured orebody. Excavations of current methods are driven close to the incompetent orebody. Determination of the appropriate method based on criteria of selection techniques together with the analysis of operating costs and safety. Reclamation of ore in the collapsed blocks entirely depended on maximizing revenue recovery of the mineral and safe working environment for equipment and personnel. On recommendation of a suitable method extent of the collapsed blocks was another aspect considered. The proposed methods of extraction were variants of block caving further shortlisted based on the extent of collapse. Economic appraisal of both the recommended and current mining methods employed included extraction recovery development reclamation costs revenue estimation and revenue raised from finished copper.
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Last modified: 2015-11-13 18:32:49