露天采场铜钴氧化矿蜂窝状矿石构造爆破效果的改善OA

Open-pit mining areas,particularly those containing copper-cobalt oxide ores,frequently feature hon-eycomb-structured ore bodies with extensive geological discontinuities,including joints and cavities,creating substan-tial difficulties during stripping operations.This phenomenon is especially pronounced during blasting operations,manifesting as low borehole formation rates,elevated high boulder yield,inadequate fragmentation,and hard toe.All of which significantly compromise subsequent excavation and loading efficiency while simultaneously introducing op-erational safety risks.To optimize blasting effects in honeycomb-structured copper-cobalt oxide ores while maintaining economic feasibility,three key improvements were implemented:enhancing drilling success through reduced depth/diameter,increasing charge height via anti-static PVC pipe confinement and cartridge hoisting,and parameter adjust-ments to satisfy subsequent construction requirements.The results demonstrate that this approach substantially en-hances post-blasting performance metrics,including boulder yield,hard toe occurrence,and fragmentation quality,ef-fectively satisfying subsequent excavation and haulage requirements while optimizing stripping operations for the fol-lowing mining cycle.