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33th Polish-Czech-Slovak Symposium on Mining and Environmental Geophysics : abstract proceedings
Rudajev, Vladimír ; Živor, Roman
The Proceedings contain 24 abstracts of papers by Czech and foreign participants, presented on the 33rd Polish-Czech-Slovak Symposium on Mining and Environmental Geophysics
Sborník příspěvků XXXI. polsko-česko-slovenského sympozia o důlní a environmentální geofyzice
Rudajev, Vladimír ; Živor, Roman ; Svítilová, Jaroslava
Proceedings include papers devoted to geophysical methods application for solution of following problems: mining tremors, structure and properties of rock massif, geotechnical questions and laboratory investigation of rock fracturing.
History of seismicity research in the Kladno coal district
Rudajev, Vladimír ; Buben, Jiří ; Brož, Milan ; Živor, Roman
The basic information about history and results of the seismicity research in the Kladno Coal Discrit are summarized in connection with closing mining activity in this area.
Possibility of total fracturing forecasting of loaded rock samples on the base of ultrasonic emission analysis
Rudajev, Vladimír ; Lokajíček, Tomáš ; Vilhelm, Jan
The ultrasonic emission, generated by rock samples loading, was subjected to autocorrelation analysis. The increase of autocorrelation coefficients and the tendency to their linear decrease is evidence of redistribution of stress in the sample, which occurs after stronger ultrasonic events. The above-mentioned parameters have a precursory character.

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