Basic requirements on the capping system of the uranium mine tailings

Extensive investigation and mining activities for the uranium ore started in the Czech Republic only at the end of Second World War firstly for military and later for energy purposes. In the new political and economic situation of the eighties and nineties the curtailment of these activities began and most of the mines and concentration plants (mills) were closed. The paper concentrates on the uranium mine tailings from the uranium mill MAPE Mydlovary, (the other ones are Straz pod Ralskem and Dolni Rozinka), especially on the capping system, which have to fulfill such different demands as low permeability, surface drainage, shielding gamma radiation and aerial emission of radon.