TY - JOUR N2 - Lower Carboniferous limestone has been extracted in the “Czatkowice” open-pit hill-slope quarry in southern Poland since 1947, for the needs of metallurgical and building industries, as well as farming. We can distinguish two aquifers in the Czatkowice area: the Quaternary porous aquifer and the Carboniferous fissure-porous one. Two vertical zones representing different hydrodynamic characteristics can be indentified in the Carboniferous formations. One is a weathering zone and the other one the zone of fissures and interbedding planes. Groundwater inflows into the quarry workings have been observed at the lowest mining level (+315 m above the sea level (asl)) for over 30 years. This study concerns two hypotheses of the sources of such inflows originating either from (a) the aeration zone or from (b) the saturation zone. Inflows into the quarry combine into one stream flowing gravitationally to the doline under the pile in the western part of the quarry. This situation does not cause a dewatering need. Extending eastward mining and lowering of the exploitation level lead to increased inflows. L1 - http://journals.pan.pl/Content/106735/PDF/Archiwum-63-2-11-Li.pdf L2 - http://journals.pan.pl/Content/106735 PY - 2018 IS - No 2 DO - 10.24425/122456 KW - hydraulic fracturing KW - fractal dimension KW - natural fracture KW - fracturing fracture KW - numerical simulation A1 - Li, Wei A1 - Zhao, Huan A1 - Liu, Meiling A1 - Li, Siqi A1 - Sun, Wenfeng A1 - Wang, Lei PB - Committee of Mining PAS VL - vol. 63 DA - 2018.06.30 T1 - Three-Dimensional Simulation of the Fracture System Distribution in Formation Rock Based on Fractal Method UR - http://journals.pan.pl/dlibra/publication/edition/106735 T2 - Archives of Mining Sciences ER -