The research of vertical displacements of the rock mass inside and in environment of the bears’ Cave in Kletno

Joanna Andrzejewska

Аннотация


The Bears’ Cave in Kletno is the most beautiful cave in Poland. Students of Geodesy and Cartography at the Agricultural University of Wroclaw take level survey of the Cave during their training camps of the Scientific Circle of Geodesists for over twenty years. The study is used to scientific research of the Sudetes, as well as to estimate the degree of security of tourist routes in the Cave. The measurements are taken with precise level equipment and additionally, readouts are rectified by laboratory tests. The Cave area is characterised by complex geologic structure. Two tectonic faults are situated in close of the surroundings Caves. Results of the studies show instability of geologic-tectonic structures on analyzed area.


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Литература


Geodetic research of deformation of the Bears’ Cave massif, 1985-2005 (stages I-XXI), Koło Naukowe Geodetów AR Wroclaw (typescripts, in polish).

Cacoń S., Kaczałek M., Mąkolski K., 1989, The studies on the cave massif deformations [in:] Jahn A., Kozłowski S., Wiszniowska T. (edit.), The cave Jaskinia Niedzwiedzia in Kletno. Exploration and exploitation. Zakład Narodowy im. Ossolińskich, Wyd. PAN, Wrocław pp. 157-167 (in polish).

Cacoń S., Mąkolski K., 1989, Geodetic survey in the cave [in:] Jahn A., Kozłowski S., Wiszniowska T. (edit.), The cave Jaskinia Niedzwiedzia in Kletno. Exploration and exploitation. Zakład Narodowy im. Ossolińskich, Wyd. PAN, Wrocław pp. 168-179 (in polish).

Cacoń S., Košťak B., Mąkolski K., 1996, Strata deformation in Niedzwiedzia Cave effecting from anthropopressure [in:] Jahn A., Kozłowski S., Pulina M. (edit.), The Snieznik Massif – changes in the natural environment, Polska Agencja Ekologiczna, Wyd. PAE, Warszawa, s.71-84 (in polish).

Piotrowicz M., 2005, Determination of benchmarks displacements in surroundings and inside the Bears’ Cave in Kletno on the basis of various methods of precision levelling net adjustment, Master’s Thesis, Wroclaw (in polish).


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