Investigations of spoil dump soils in selected areas of the internal spoil heaps of the „PAK Konin Lignite Mine S.A”

Abstract

The article presents the scope and methodology of investigations carried out in selected two locations of the internal spoil heaps of Jóźwin IIA and Jóźwin IIB open pits, PAK Konin S.A. Lignite Opencast Mine. The results obtained are also discussed. The studies carried out included geological drilling with undisturbed specimen sampling and borehole core sampling, SCPTu static soundings, and laboratory tests.The work was carried out in the frame of the international project „SUMAD Sustainable Use of Mining Waste Dumps”, financed by the Research Fund of Coal and Steel and co-financed by the Polish Ministr y of Science and Higher Education.