Mining induced seismicity: moment tensor vs. shear-tensile/implosion model. Case study of Ridgeway, E. Australia gold mine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F13%3A00423099" target="_blank" >RIV/67985530:_____/13:00423099 - 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

Mining induced seismicity: moment tensor vs. shear-tensile/implosion model. Case study of Ridgeway, E. Australia gold mine

Popis výsledku v původním jazyce

The mechanism of a seismic event is a parameter of crucial importance retrieved from seismic data as it carries information on the way of fracturing of the rock mass in its hypocenter. Taking advantage of the linearity of the inverse task, the moment tensor (MT) has become the default tool for description of the mechanism of natural earthquakes and induced events as well, including rockbursts in mines. The MT is a general dipole source, but for practice it may be too general, its generality causing troubles during its reconstruction from noisy data in the inverse process, which may be additionally ill-conditioned due to inexact hypocenter location and/or availability of a rough velocity/attenuation model only. Then, the retrieved source may be biased,containing artifacts of a low-quality data or the inconsistent inverse problem. It seems reasonable to assume a simpler source model directly describing the physical phenomena anticipated in the particular focus.

Název v anglickém jazyce

Mining induced seismicity: moment tensor vs. shear-tensile/implosion model. Case study of Ridgeway, E. Australia gold mine

Popis výsledku anglicky

The mechanism of a seismic event is a parameter of crucial importance retrieved from seismic data as it carries information on the way of fracturing of the rock mass in its hypocenter. Taking advantage of the linearity of the inverse task, the moment tensor (MT) has become the default tool for description of the mechanism of natural earthquakes and induced events as well, including rockbursts in mines. The MT is a general dipole source, but for practice it may be too general, its generality causing troubles during its reconstruction from noisy data in the inverse process, which may be additionally ill-conditioned due to inexact hypocenter location and/or availability of a rough velocity/attenuation model only. Then, the retrieved source may be biased,containing artifacts of a low-quality data or the inconsistent inverse problem. It seems reasonable to assume a simpler source model directly describing the physical phenomena anticipated in the particular focus.

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/GAP210%2F12%2F2235" target="_blank" >GAP210/12/2235: Modely seismického zdroje: mezi dvojitým dipólem a momentovým tenzorem</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 8th International Symposium on rockbursts and seismicity in mines

ISBN

978-5-903258-28-4

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

189-193

Název nakladatele

Inter-YES

Místo vydání

Perm

Místo konání akce

Saint-Petersburg

Datum konání akce

1. 9. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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