·Block Caving 300 2000 10 000 100 000 1 9$/t average Primary Fragment Drift spacing Drawpoint interaction Draw zone spacing/pillar Drilling & blasting Hauling Crushing Layout Logistics Excavation stability Method of Draw Draw heights Sequence rate of draw Ventilation Undercutting sequence
·The broken ore density BOD commonly related to the swell or bulking factor is an important parameter for block caving design It is well known that the ore column density decreases and swell
·Report number MOL Research Report Two 2009/2010 Mining Optimization Laboratory September 2010 Paper 108 pp 116 133 ISBN 978 1 55195 280 2
·The RFCMS chains a group of feeders a heavyweight conveyor and a primary crusher Early crushing of the mineral was introduced to avoid grizzlies on ore passes and to allow proper operation on conveyors belts Each feeder extracts ore from the draw points which feeds the conveyor equipped with a primary crusher Block caving mining is
·The block caving mining method has become increasingly popular in the last two decades Meanwhile Indonesia has several potential ore bodies which have not yet determined suitable mining methods The references to block caving mining projects worldwide and the potency of metal deposits in Indonesia were reviewed to determine the requirements of
·To improve ore recovery ratio and the quality of medium length hole blasting in non pillar sublevel caving method this study first investigated the effects of brow line failure on rock movement
Introduction The block caving method has been widely used in the mining industry for over 30 years In this process three stages can be identified in situ fragmentation and primary and secondary rock size obtained after secondary fragmentation has a strong influence on design stages ore extraction and haulage and mineral processing Laubscher
·Block and panel caving mines are increasingly being proposed for the excavation of massive ore bodies located at depth The lack of selectivity associated with the mining methods results in both ore and waste being caved and transported through material handling systems to the surface for processing and waste rock disposal
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