. . . "On the basis of the evaluation of seismograms of 49 rockbursts in the Karvin\u00E1 part of the Ostrava-Karvin\u00E1 Coalfield the frequencies of seismic longitudinal and transversal waves moving in the ranges from 2 to 22 Hz with the average of 5.8 Hz and from 1 to 16 Hz with the average of 4.2 Hz, respectively, were determined. For evaluating the velocity of the mass point, equations that took into account values measured, the distance between the earthquake centre and the point and also seismic energy released were created. The maximum found velocity of the mass point during rockbursts was 2 mm.s-1. The stress induced by seismic wave propagation in the places of manifestations of rockbursts in mine workings was determined from the velocity of the mass point, the velocity of seismic wave propagation and the volumetric weight. The maximum calculated stress was 22 kPa; 8 kPa on the average. At dynamic (cyclic) uniaxial stress testing the Carboniferous rocks by using the MTS 816 Rock Test System, dependences of"@en . "0"^^ . "Research into stress-strain behaviour of rocks in dynamic loading"@en . . "1"^^ . "Ostrava" . "0"^^ . . . "1"^^ . "27350" . . "RIV/61989100:27350/03:00008872!RIV/2004/GA0/273504/N" . "P(GA105/01/0042)" . "[B84994BB1E0A]" . . . . "dynamic uniaxial stress testing, rock behaviors"@en . "V\u00FDzkum nap\u011B\u0165op\u0159etv\u00E1rn\u00E9ho chov\u00E1n\u00ED hornin p\u0159i dynamick\u00E9m nam\u00E1h\u00E1n\u00ED" . . "Na z\u00E1klad\u011B vyhodnocen\u00ED seismogram\u016F 49 d\u016Fln\u00EDch ot\u0159es\u016F v karvinsk\u00E9 \u010D\u00E1sti Ostravsko-karvinsk\u00E9ho rev\u00EDru bylo stanoveno, \u017Ee frekvence seismick\u00FDch pod\u00E9ln\u00FDch vln je v rozmez\u00ED od 2 do 22 Hz s pr\u016Fm\u011Brem 5,8 Hz a p\u0159\u00ED\u010Dn\u00FDch vln v rozmez\u00ED od 1 do 16 Hz s pr\u016Fm\u011Brem 4,2Hz. Pro hodnocen\u00ED rychlosti hmotn\u00E9ho bodu byly stanoveny rovnice zohled\u0148uj\u00EDc\u00ED nam\u011B\u0159en\u00E9 hodnoty, hypocentr\u00E1ln\u00ED vzd\u00E1lenost od ohniska ot\u0159esu a uvoln\u011Bnou seismickou energii. Maxim\u00E1ln\u00ED zji\u0161t\u011Bn\u00E1 hodnota rychlosti hmotn\u00E9ho bodu p\u0159i d\u016Fln\u00EDm ot\u0159esu \u010Dinila 2 mm . s-1. Z rychlosti hmotn\u00E9ho bodu, rychlosti \u0161\u00ED\u0159en\u00ED seismick\u00FDch vln a z objemov\u00E9 hmotnosti bylo stanoveno nap\u011Bt\u00ED vlivem \u0161\u00ED\u0159en\u00ED seismick\u00FDch vln v m\u00EDst\u011B projev\u016F d\u016Fln\u00EDch ot\u0159es\u016F v d\u016Fln\u00EDch d\u00EDlech. Maxim\u00E1ln\u00ED vypo\u010Dten\u00E9 nap\u011Bt\u00ED bylo 22 kPa, v pr\u016Fm\u011Bru 8 kPa. P\u0159i z kou\u0161k\u00E1ch dynamick\u00E9ho (cyklick\u00E9ho) jednoos\u00E9ho tlakov\u00E9ho nam\u00E1h\u00E1n\u00ED karbonsk\u00FDch hornin na zku\u0161ebn\u00EDm za\u0159\u00EDzen\u00ED MTS 816 Rock Text System byly zji\u0161t\u011Bny z\u00E1vislosti jednoos\u00E9 tlakov\u00E9 pevnosti, pr\u016Fm\u011Brn\u00E9ho modulu p\u0159etv\u00E1rnosti, modulu pru\u017Enosti, m\u011Brn\u00E9 energie dyna" . "V\u00FDzkum nap\u011B\u0165op\u0159etv\u00E1rn\u00E9ho chov\u00E1n\u00ED hornin p\u0159i dynamick\u00E9m nam\u00E1h\u00E1n\u00ED" . "V\u00FDzkum nap\u011B\u0165op\u0159etv\u00E1rn\u00E9ho chov\u00E1n\u00ED hornin p\u0159i dynamick\u00E9m nam\u00E1h\u00E1n\u00ED"@cs . "RIV/61989100:27350/03:00008872" . . "Petro\u0161, Vladim\u00EDr" . . "Neuveden" . . "58"^^ . "V\u00FDzkum nap\u011B\u0165op\u0159etv\u00E1rn\u00E9ho chov\u00E1n\u00ED hornin p\u0159i dynamick\u00E9m nam\u00E1h\u00E1n\u00ED"@cs . "V\u0160B - TU Ostrava" . "Research into stress-strain behaviour of rocks in dynamic loading"@en . "635077" .