Application of Dewatering and Drainage in Open-pit Mines
Ensuring slope stability is a critical consideration in open-pit mining operations,with groundwater serving as a key factor influencing the stability of exposed slopes.The hydrogeological conditions at a specific mine in Africa are characterized by com-plexity,significantly impacting the stability of open-pit slopes during mining activities.This paper presents an analysis of the subter-ranean water distribution and volumetric inflow within the mine to inform strategic placement and depth determination for drainage boreholes.Groundwater dewatering is accomplished through the implementation of deep well pumps,with equipment selection and sizing tailored to borehole depth and inflow rates.By effectively reducing groundwater table elevations within the open-pit excava-tion area,this approach ensures that they remain below working face elevations,thereby enhancing slope stability and guaranteeing safe open-pit mining operations.
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