TECHNOLOGICAL ASPECTS OF NARROW VEIN MINING - SUGGESTED MODIFICATIONSAND NEW DEVELOPMENTS - MINING OF SHALLOW AND INTERMEDIATE DIPPING (LESS-THAN-45-DEGREES) ORE ZONES

The factors constraining productivity in the mining of narrow vein ore deposits are numerous and often interdependent. This paper concerns m ining techniques capable of reducing some of these constraints in the case of vein deposits whose dip is less than 45 degrees. Modifications of conventional mining methods as well as suggested new developments are presented, as are matters pertaining to the mechanization of opera tions as a mean of increasing both productivity and work safety.