Observation of rotational component in digital data of mining induced seismic events

0377012 - ÚGN 2013 RIV PL eng J - Journal Article
Kaláb, Zdeněk - Knejzlík, Jaromír - Lednická, Markéta
Observation of rotational component in digital data of mining induced seismic events.
Górnictwo i Geologia. Roč. 7, č. 1 (2012), s. 75-85. ISSN 1896-3145.
[Ochrona środowiska w górnictwie podziemnym, odkrywkowym i otworowym. Wieliczka - Zakrzow, 16.05.2012-18.05.2012]
Institutional research plan: CEZ:AV0Z30860518
Keywords : rotational component * mining induced seismic event * field measurement
Subject RIV: DC - Siesmology, Volcanology, Earth Structure

The Russian pendulous S-5-S seismometer was adapted for measurement of rotational movement. Output signal can be proportional either to rotational velocity or rotational displacement. Tested measurement was realized in laboratory; in this paper first field measurement with this seismometer is presented. Obtained results document measurable values of rotational movements. The strongest measured values of rotational component exceed 1 mrad.s-1. Values of rotational component of vibration are negligible comparing with values of translation components from viewpoint of structures damages.
Permanent Link: http://hdl.handle.net/11104/0209276