Abstract
The rock burst mechanism of an implosive character is introduced and discussed; it is based on the idea that the compressional component of the stress field around the loaded stress concentrator can participate in the rock burst event. For easier classification of the rock burst from this viewpoint, a set of P-wave radiation patterns of the rock burst with a varying portion of the implosive component and varying propagation velocity of the displacements is presented and discussed. To support the credibility of the rock burst mechanism of an implosive character the seismic signals of the rock bursts from the mid-Bohemian coal district with negative signs of the P-wave first onsets are presented.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Fučík, P. andRudajev, V. (1979a),Physical parameters of rock burst sources, Publs. Inst. Geoph. Pol. Acad. Sci. M-2 (123), 21–36.
Fučík, P. andRudajev, V. (1979b),Modification of the Sharp model for the study of parameters of rock bursts foci, Acta Montana50, 41–54 (Prague).
Fučík, P. andRudajev, V. (1980),Geometrical parameters of the rock burst foci, Acta Montana55, 51–58 (Prague).
Gibowicz, S. J., Cichowicz, A. andDybel, T. (1977),Seismic moment and source size of mining tremors in Upper Silesia, Poland, Acta Geophys. Polonica25, 201–218.
Gibowicz, S. J., Bober, A., Cichowicz, A., Droste, Z., Dychtowicz, Z., Hordejuk, J., Kazimierczyk, M. andKijko, A. (1979),Source study of the Lubin tremor of 24th March, 1977, Poland, Acta Geophs. Polonica27, 3–38.
Gibowicz, S. J. (1982),Seismicity induced by surface mining: The Belchatow earthquakes of 29th November, 1980, Poland, Acta Montana61, 9–26 (Prague).
Hirasawa, T. andStauder, W. (1965),On the seismic body waves from a finite moving source, Bull. Seismol. Soc. Am.55, 237–262.
Kozák, J. andŠílený, J. (1985),Seismic events with non-shear component: I. Shallow earthquakes with tensile source component, Pure Appl. Geophys.,123, No. 1.
Rudajev, V. andFučík, P. (1982),Possibilities of utilizing the autoregressive model for rock bursts prediction (in Czech), Acta Montana,61, 47–60 (Prague).
Savage, J. C. (1965),The effect of rupture velocity upon seismic first motions, Bull. Seismol. Soc. Am.55, 263.
Teisseyre, R. (1980),Some remarks on the source mechanism of rock bursts in mines and on the possible source extension, Acta Montana55, 7–14 (Prague).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Rudajev, V., Šílený, J. Seismic events with non-shear component: II. Rock bursts with implosive source component. PAGEOPH 123, 17–25 (1985). https://doi.org/10.1007/BF00877046
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00877046