Moment tensors of mining tremors: detection tool of the mode of rock-mass fracturing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F11%3A00372605" target="_blank" >RIV/67985530:_____/11:00372605 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Moment tensors of mining tremors: detection tool of the mode of rock-mass fracturing

Popis výsledku v původním jazyce

Traditional view about seismic events as exclusively shear slip phenomena has changed during recent decades. Advanced instrumentation and monitoring provide data which indicate events not matched by a simple double couple (DC). While earthquakes, in particular the strong events, are commonly assumed as shear slips, in foci of mining tremors physically a more complex mechanism may be expected due to injuring the rock mass by mine cavities concentrating the ambient stress. The mechanism in the moment tensor (MT) representation is an important discrimination instrument. To develop it into a reliable tool it is however vital to assess properly errors in the MT retrieval, particularly in the non-DC component determination, which is vulnerable to deterioration of the quality of records, station distribution, event location and velocity modeling.

Název v anglickém jazyce

Moment tensors of mining tremors: detection tool of the mode of rock-mass fracturing

Popis výsledku anglicky

Traditional view about seismic events as exclusively shear slip phenomena has changed during recent decades. Advanced instrumentation and monitoring provide data which indicate events not matched by a simple double couple (DC). While earthquakes, in particular the strong events, are commonly assumed as shear slips, in foci of mining tremors physically a more complex mechanism may be expected due to injuring the rock mass by mine cavities concentrating the ambient stress. The mechanism in the moment tensor (MT) representation is an important discrimination instrument. To develop it into a reliable tool it is however vital to assess properly errors in the MT retrieval, particularly in the non-DC component determination, which is vulnerable to deterioration of the quality of records, station distribution, event location and velocity modeling.

Druh

D - Stať ve sborníku

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F09%2F0724" target="_blank" >GA205/09/0724: Nestřižné mechanismy - nástroj detekce módu rozrušování</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Third passive seismic workshop Actively Passive! Workshop proceedings

ISBN

978-90-73834-05-7

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

6-10

Název nakladatele

EAGE

Místo vydání

Houten

Místo konání akce

Athens

Datum konání akce

27. 3. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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