Energies (Apr 2021)

Surface Deformations Resulting from Abandoned Mining Excavations

  • Piotr Strzałkowski,
  • Roman Ścigała,
  • Katarzyna Szafulera,
  • Konrad Kołodziej

DOI
https://doi.org/10.3390/en14092495
Journal volume & issue
Vol. 14, no. 9
p. 2495

Abstract

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The occurrence of surface discontinuous deformations in post-mining areas is currently a significant and important problem, due to both the frequency of their occurrence and the threat they pose to public safety. This paper presents the results of research concerning the possibility of sinkhole formation in the areas of abandoned mining excavations. For the purpose of assessing the condition of the rock mass disturbed by the existence of numerous mining excavations, electrical resistivity tomography investigations were carried out for the selected area where mining was undertaken in the past at shallow depths and many underground workings accessing the deposit exist. The sinkhole hazard was also analysed theoretically with a new original model based on the solution of A. Sałustowicz’s pressure arch theory.

Keywords