Investigation of ground velocities during rockbursts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F03%3A00009108" target="_blank" >RIV/61989100:27350/03:00009108 - 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

Investigation of ground velocities during rockbursts

Popis výsledku v původním jazyce

This paper presents partial results of the ground velocities analysis which were observed during the rockbursts at three underground seismological stations situated in the Ostrava-Karviná coal mines. For the investigation records of 49 rockbursts were used, energy of which was within the range of 103 - 107 J and hypocentral distances varied from 500 to 6900 m. Using the method of linear regression, dependences for ground velocity ui vs. scaled distance rred for P and S waves were derived which were expressed by following equations: Pmax -waves ui = 1.243x10-4 * rred-1.016 (m.s-1) Smax -waves ui = 5.167x10-4 * rred-1.185 (m.s-1) interrelations between individual parameters, i.e. ground velocity, hypocentral distance and seismic energy a nomogram was constructed. From experimental measurements implies that prevailing frequencies of P and S waves occur within the frequency bands of about 3 - 12 Hz and 2 - 6Hz, respectively.

Název v anglickém jazyce

Investigation of ground velocities during rockbursts

Popis výsledku anglicky

This paper presents partial results of the ground velocities analysis which were observed during the rockbursts at three underground seismological stations situated in the Ostrava-Karviná coal mines. For the investigation records of 49 rockbursts were used, energy of which was within the range of 103 - 107 J and hypocentral distances varied from 500 to 6900 m. Using the method of linear regression, dependences for ground velocity ui vs. scaled distance rred for P and S waves were derived which were expressed by following equations: Pmax -waves ui = 1.243x10-4 * rred-1.016 (m.s-1) Smax -waves ui = 5.167x10-4 * rred-1.185 (m.s-1) interrelations between individual parameters, i.e. ground velocity, hypocentral distance and seismic energy a nomogram was constructed. From experimental measurements implies that prevailing frequencies of P and S waves occur within the frequency bands of about 3 - 12 Hz and 2 - 6Hz, respectively.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DH - Báňský průmysl včetně těžby a zpracování uhlí

OECD FORD obor

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Projekt

<a href="/cs/project/GA105%2F01%2F0042" target="_blank" >GA105/01/0042: Výzkum napěťopřetvárného chování hornin při dynamickém namáhání</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Acta Montana, ser. A, No. 22 (129), 2003

ISSN

1211-1910

e-ISSN

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Svazek periodika

Neuveden

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

15-20

Kód UT WoS článku

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EID výsledku v databázi Scopus

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