COMPREHENSIVE EVALUATION STUDY ON GRADE INDEX OF CERTAIN GOLD-COPPER DEPOSIT

Through the comprehensive analysis of various factors that affect the mine operatoin results and by the systematic modelling method and the fuzzy comprehensive evaluation method,multi-purpose optimizatoin study was made on the cut-off grade,industrial grade and relative main technic indexes of certain mine.From the results we know gross profit and NPV have obviously improved after optimization,so its reasonable for optimization grade index on this mine.