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Conference papers

Long-term slope stability of abandoned mine lake - numerical modelling and risk assessment

Abstract : Almost all post exploitation open pit mines in the world are shaped as a final reservoir intended to be filled with water. In Europe, the creation of water lakes is the most common way of reclaiming post open pit mines. The safety and the security of mine lakes is one of the priorities of mine regions. One of the main hazards identified is the slope stability of lake banks. To develop a reliability methodology for assessing the long-term stability of flooded open pit mines, a large-scale numerical model of the lake was carried out and was applied on Lake Most, which is one of the largest mining lakes in Europe (Czech Republic). The large-scale numerical model was built, based on the site observations, large scale LiDAR data and geotechnical data. The results highlighted the reliability of the methodology to combine the geometric model with the geological model to create a large-scale numerical model, and to identify local and potentially instable zones.
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Submitted on : Friday, January 21, 2022 - 4:34:16 PM
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Vincent Renaud, Marwan Al Heib, Roxane Muller, Jan Burda. Long-term slope stability of abandoned mine lake - numerical modelling and risk assessment. International Conference on Raw Materials and Circular Economy (RawMat 2021), Sep 2021, Athens, Greece. 88, ⟨10.3390/materproc2021005088⟩. ⟨ineris-03539344⟩



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