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THE APPLICATION OF HIGH DENSITY PASTE BACKFILL AT AN UNDERGROUND MINE
Abstract
Mine backfill can be defined as the material or materials used for filling the underground openings created by the mining process in order to establish and retain safe working conditions. In this study, an overview of the current application of mining operations with paste backfill technology has been examined with a case study from an underground copper-zinc mine located in the northeast Turkey. Due to the elimination of the harmful mine tailings obtained from mill processing and hence the reduced rehabilitation costs on surface, paste backfill method has found increasingly extensive use on many modern mining industries around the world for the last two decades. Disposal of mine tailings underground not only reduces the environmental impact on surface mine site but also allows an engineering material for underground mines to improve the ground conditions and economic efficiently. This paper describes firstly how the paste backfill technology contributes to a mining operation and then explains the current paste backfill practice with a case study in terms of its preparation, transport, placement and quality control processes.
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References14
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