ABSTRACT
Since its discovery, economical and safe exploitation of the copper deposit in the LubinGlogow district (Fore-Sudetic Monocline, Poland), has been largely dependant on the choice of a mining technique. Due to the overall geological complexity of the deposit, the list of critical characteristics that have to be taken into account while selecting an optimal technique inccludes:
– substantial depth of occurrence of the deposit that ranges from 600 m to 1200 m below surface,
– diverse lithology, – substantial aerial extent combined with a low (4° to 6°) dip angle of mineralized strata, – rock-mass competency differences (the strength of main roof strata is 7 to 10 times
greater than that of the floor), – the ability of ore and surrounding rock-mass to accumulate, and violently release,
elastic strain energy, – complex tectonic conditions, – diffused nature of mineralization and the absence of macroscopically identifiable
mineralization markers.
