Record details

Title
    Heuristic Model of Multimodal Energy Frequency Distribution in Multistratified Environment in Primarily Strain-Homogenous Areas
Statement of responsibility
    Pavel Kalenda
Author
    Kalenda, Pavel
Language
    anglicky
Source title - serial
    Acta montana. Series A, Geodynamics
Vol./nr.
    Vol. 14(114)
Pages
    p. 25-37
Year
    1999
Notes
    5 obr., 2 s.bibl.
    České resumé
    Zkr. název ser.: Acta montana (Praha), Ser. A.
Subject group
    analýza statistická
    četnost
    důlní otřes
    hornoslezská pánev
    predikce
    těžba podzemní
    uhelná sloj
    zemětřesení indukované
Geographical name
    ČR-Morava
    Karviná
    Ostrava
Keyword
    Areas
    Distribution
    Energy
    Environment
    Frequency
    Heuristic
    Model
    Multimodal
    Multistratified
    Primarily
    Strain-Homogenous
Abstract (in english)
   The parameter changes of theoretical distributions (Paretto, Weibull) are often used for short-term prediction of strong mine tremors (Lasocki, 1993a). The real observed data of energy-frequency (E-F) distribution are interleaved with these theoretical distributions. Such statistical prediction provides doog results in simple consitions, but in the multilayer environment with alteration of strong and weak layers in the hanging wall, these results are unambiguous. All parameters of E-F distribution were analysed in this work: the lower and upper limitations and E-F distribution slope. It was shown that the lower and upper limitations of E-F distribution have not any prediction ability for strong mine tremors, but they are connected with apparatus sensitivity and thicknesses of the hanging wall layers respectively.
   The development of E-F distribution slope was modelled in case of coalface advancement in the strain-homogenous area and it was shown that the periods of increasing and decreasing sliope values were interchanged. Such a development of E-F distribution slope resulted in the activation of individual layers. The influence of individual layers depended on the proportion between their seismic activity and that of the whole coalface area
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    25. 3. 2008
Import date
    8. 8. 2012