Seismic analysis of rockbursts recorded underground in the Ostrava - Karviná Coal Basin within the years 1993 - 2013

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Seismic analysis of rockbursts recorded underground in the Ostrava - Karviná Coal Basin within the years 1993 - 2013

Popis výsledku v původním jazyce

The coal mining in the Ostrava-Karviná Coal Basin (Czech Republic) is accompanied with generating induced seismic events in the course of which is released appreciable quantity of seismic energy. Based on our long-term observations at trio of three component sensors placed underground, it was found out that roughly 40,000 - 50,000 seismic events were yearly detected and localized. These events have been occurring within broad energetic scale for individual events, the highest energetic class was recognized up to 108 J during the last twenty years. According to our classification of seismic events we differentiate, in principle, three types of events. As the most frequent there are ?usual events, the second less frequent group which includes so-called ?mining shocks usually felt by miners underground and significantly by the inhabitants on the surface of undermined area. The last group and too hazardous one mainly for miners underground, is denoted as ?rockburst [2,3].

Název v anglickém jazyce

Seismic analysis of rockbursts recorded underground in the Ostrava - Karviná Coal Basin within the years 1993 - 2013

Popis výsledku anglicky

The coal mining in the Ostrava-Karviná Coal Basin (Czech Republic) is accompanied with generating induced seismic events in the course of which is released appreciable quantity of seismic energy. Based on our long-term observations at trio of three component sensors placed underground, it was found out that roughly 40,000 - 50,000 seismic events were yearly detected and localized. These events have been occurring within broad energetic scale for individual events, the highest energetic class was recognized up to 108 J during the last twenty years. According to our classification of seismic events we differentiate, in principle, three types of events. As the most frequent there are ?usual events, the second less frequent group which includes so-called ?mining shocks usually felt by miners underground and significantly by the inhabitants on the surface of undermined area. The last group and too hazardous one mainly for miners underground, is denoted as ?rockburst [2,3].

Druh

O - Ostatní výsledky

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů