Journal
MINE WATER AND THE ENVIRONMENT
Volume 35, Issue 2, Pages 128-135Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10230-015-0360-6
Keywords
Groundwater hazard; Backfill saturation; Mine flooding
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Central Europe experienced catastrophic rainfalls and flooding in 2010. This paper discusses a decommissioned shaft that was flooded by surface water, which led to displacement of shaft backfill and an inrush of large amounts of water into an underground pumping station. The weather conditions for the period preceding the inrush, the hydrogeological conditions, the quantity of water that entered the mine dewatering systems, and the underground hydraulic connections are all described. Uncontrolled inflow of water as a cause of backfill saturation and the hazard for active underground infrastructure were analysed. A need to rebuild damaged infrastructure was identified. The case study highlights the need to improve underground mine closure requirements to ensure safe conditions above ground, particularly in densely populated areas.
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