Optimization of ash content in overburden dumps: a numerical approach

摘要: Coal mines and associated power stations generate significant waste volumes, including mine overburden (OB) and ash (both fly and bottom ash). The current practice of waste management (OB and ash) in these industries around the world consists of disposal to either dumps or landfills. The safe and successful management of huge volumes of ash represents a major challenge–especially with the scarcity of land space available. An important step forward in the coal mining-power generation complex is to increase the utilization of ash. The conventional utilization techniques (ash in backfilling operations, construction bricks, etc.) have certainly helped these industries, but still they are far from complete. This paper examines the utilization of ash in stabilization of overburden dumps in opencast mines. The safety of waste dumps is of key economic importance in mine planning and has been among the important …