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Evaluation of rock mass quality by alternative methods - comparison of various lithological conditions (metamorphic/volcanic/sedimentary)
Staš, Lubomír ; Waclawik, Petr ; Souček, Kamil ; Vavro, Martin ; Schuchová, Kristýna ; Kukutsch, Radovan ; Kubina, Lukáš
One of the aims of the project was the verification of the measured geophysical quantities with data obtained by various geotechnical methods. For this purpose, several underground mining workings located in different lithological condition were selected. The Experimental gallery Josef was selected in volcanic rocks, the metamorphic rock massif was represented by the mining workings of the Rožná Mine and the sedimentary environment was investigated in the old slate mine Modrá štola. Geotechnical methods using drilling and alternative methods without intervention to the rock mass were used for the qualitative description of the rock mass. Structural mapping of the mining workings walls and reflectivity by the Schmidt hammer were used to quantify the structural failure of the rock mass.

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