Osuwiska w województwie łódzkim i ich szczególny charakter w wyrobisku KWB „Bełchatów”
Landslides in Łódź district and their special character in KWB „Bełchatów” opencast mining

Summary/Abstract: An increase of the intensity of landslide processes and threats, which they cause, resultedin growth of interest in rock slides. Łódź district is located in the area, where the frequency ofslide processes caused by natural factors is the lowest in Poland. It is due to lack of naturallong slopes of big inclinations. However, the geological structure of some areas potentiallyfavours landslides formation, especially there, where great slopes are created by humans(Fig. 1, 2, Photos 2, 3, 4).There are many mineral resources mines in Łódź district, hence the probability of steepescarpments and hillsides formation creation increase the chance of landslides danger. However,the type of extracted ores, with a few exceptions, do not favour landslides formation. If theyare formed there are of small sizes. One, but a very important exception is KWB "Bełchatów"opencast excavation and a new adjacent, similar "Szczerców" opencast. Because of particulardepth of the flIst excavation and its very complicated geological structure, landslides processesare here frequent and intensive. The sizes of formed landslips are comparative with the greatestnatural landslides in Poland (Tab. 1, Fig. 4, Photos 3, 4). They are a great threat for machinesand workers of mining factory. The analysis of current landslide processes, establishing thereasons of their formation and their dynamics, as well as continuous monitoring of the zonesendangered by these phenomena are basic for controlling landslide processes and limiting danger.

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