Technical aspects of liquidation of the shafts “Głowacki” in Rybnik, “Jas VI” and “Jas II” in Jastrzębie Zdrój, Poland

Abstract

Mining plants liquidating the unnecessary objects, especially shafts, encounter difficulties related mainly to the selection of appropriate technology. In this material, we present solutions for two more difficult cases. The first consists in liquidating the shaft without making dams and maintaining the water permeability of the backfilling (Głowacki shaft), while the second one is the liquidation of the shaft, leaving the ladder compartment, pipelines and with the so-called artificial bottom which is in the shaft (Jas II shaft).