ABSTRACT
ABSTRACT: Uranium mining in the Ronneburg district, the largest of WISMUT’s mine sites, started in 1951 and ceased in 1990. As an important part of remediation the underground mine is being flooded since 1998. Hydraulic simulations were the main tasks of the early years of modelling for the development of the flooding concept. In 2002 and 2003 test operation phases of the water management were implemented and resulted in a more reliable basis for flooding prediction. According to the results of a quantitative model, the flooding operation is expected to be completed between 2007 and 2008 after reaching a quasi-steady state of inundation. Another task for present modelling activities is to attend the technical planning process for the design of water collection systems for contaminated groundwater in the final flooding phase; these activities also include hydrochemical modelling.
