Power spectra of quarry blasting works measured in different depths

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F20%3A00539568" target="_blank" >RIV/68145535:_____/20:00539568 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27120/20:10246487

Výsledek na webu

<a href="https://actamont.tuke.sk/pdf/2020/n3/4kalab.pdf" target="_blank" >https://actamont.tuke.sk/pdf/2020/n3/4kalab.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.46544/AMS.v25i3.4" target="_blank" >10.46544/AMS.v25i3.4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Power spectra of quarry blasting works measured in different depths

Popis výsledku v původním jazyce

Vibrations generated by quarry blasting are the most intensive manifestation of technical seismicity. Comparative measurements of vibrations from blasting generated in open-pit mines were performed in the Jeroným Mine near Čistá (Czech Republic). A detailed evaluation of vibrations on underground spaces is very important here because this mine is a significant heritage site of medieval tin mining. The distance between the nearest feldspathic quarry named Krásno and the Jeroným Mine is 4.7 km east, Vítkov quarries (granite) is located north in the distance of 6.3 km. Maximum values from the nearest quarry Krásno are usually within the range of 10-3 – 10-2 mm.s-1. Prevailing frequency range of recorded waves is 1 - 6 Hz for both quarries. nTo qualify seismic loading of mine, one seismic station was located on the surface, the second one in the mine at a depth of about 30 m. Power spectra could be used for distinguishing, but the difference in spectra shapes is rather evident. Especially the difference is most explicit for the frequency range 70 - 100 Hz between power spectra of surface and underground records. Fitted trends were calculated for the mentioned frequency range of power spectra. Spectral time-frequency diagrams were also defined.n

Název v anglickém jazyce

Power spectra of quarry blasting works measured in different depths

Popis výsledku anglicky

Vibrations generated by quarry blasting are the most intensive manifestation of technical seismicity. Comparative measurements of vibrations from blasting generated in open-pit mines were performed in the Jeroným Mine near Čistá (Czech Republic). A detailed evaluation of vibrations on underground spaces is very important here because this mine is a significant heritage site of medieval tin mining. The distance between the nearest feldspathic quarry named Krásno and the Jeroným Mine is 4.7 km east, Vítkov quarries (granite) is located north in the distance of 6.3 km. Maximum values from the nearest quarry Krásno are usually within the range of 10-3 – 10-2 mm.s-1. Prevailing frequency range of recorded waves is 1 - 6 Hz for both quarries. nTo qualify seismic loading of mine, one seismic station was located on the surface, the second one in the mine at a depth of about 30 m. Power spectra could be used for distinguishing, but the difference in spectra shapes is rather evident. Especially the difference is most explicit for the frequency range 70 - 100 Hz between power spectra of surface and underground records. Fitted trends were calculated for the mentioned frequency range of power spectra. Spectral time-frequency diagrams were also defined.n

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Acta Montanistica Slovaca

ISSN

1335-1788

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

8

Strana od-do

302-309

Kód UT WoS článku

000642070300004

EID výsledku v databázi Scopus

2-s2.0-85101181643