Record details

    Dimension of underground macroseismic effect areas caused by rockbursts in Ostrava-Karviná coal basin
Statement of responsibility
    Pavel Kalenda
    Kalenda, Pavel
Source title - serial
    Acta montana. Series A, Geodynamics
    No. 10(102)
    p. 163-170
    5 diagr., 1 tab., 5 bibl.
    Zkr. název ser.: Acta montana (Praha), Ser. A.
Subject group
    hornoslezská pánev
    mechanika hornin
    metoda matematická
    odprysk horniny
    těžba podzemní
    uhlí bituminózní
Geographical name
Abstract (in english)
   In view of mining workers, the macroseismic effects of seismic events caused by mining activities affecting underground working are an important criterion for their underground labour safety. Macroseismic effects depend on many factors relating to the seismic event itself, on properties of its surroundings and on driving the underground working itself. Limit distances of possible effects caused by seismic events, depending on the energy radiated from an event, were carried out on the basis of processing all the seismic events with macroseismic effects (microrockbursts and rockbursts) from the Karvina's part of the Ostrava-Karviná Coal Basin (OKCB) for the period of 1980-1996. For the limit radius of area with significant floor rising (0.2-0.5 m) depending on energy of seismic event, the following empirical equation was found log r=0.1697 log(E)+0.7696 and for the most probable radius of the area affected by macroseismic effects another equation was found log r=0.1695 log(E)+0.8269
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    25. 3. 2008
Import date
    8. 8. 2012