Liquidation of the exploration pit n. 11 from the Rozna uranium deposit, Czech Republic

Abstract

The aim of this article is to introduce the history, characteristics and liquidation of one of the first exploratory borings of the Rozna deposit in the middle of Czech Republic. Based on available characteristics of the main mine workings and the local geology a design of liquidation was created to fulfill the legislative framework of Czech Republic as well as possible. The design was then executed by backfill with unconsolidated rock material and subsequently by securing the surface pit mouth of the main mine workings by closing sinking platform placed on micropiles. The finishing works included modifying the surroundings of the exploration pit by land machinery and smoothing the previous mining activity down, so that it doesn’t disturb the local morphology.