Szczegóły publikacji
Opis bibliograficzny
Efektywność rozpoznania oddziaływania krawędzi eksploatacyjnych metodami profilowania tłumienia oraz prędkości fali sejsmicznej — Effectiveness of recognition of exploitation edge influence with the help of profiling of attenuation and velocity of seismic wave / Zbigniew Szreder, Zenon PILECKI, Jerzy Kłosiński // Gospodarka Surowcami Mineralnymi = Mineral Resources Management ; ISSN 0860-0953. — 2008 — t. 24 z. 2/3, s. 215–226. — Bibliogr. s. 225, Streszcz., Abstr. — Z. Pilecki - dod. afiliacja: Instytut Gospodarki Surowcami Mineralnymi i Energią PAN, Kraków. — WARSZTATY GÓRNICZE z cyklu „Zagrożenia naturalne w górnictwie” pod patronatem Głównego Geologa Kraju dr. Henryka Jacka Jezierskiego oraz Prezesa Wyższego Urzędu Górniczego dr. inż. Piotra Buchwalda : konferencja naukowa : Baranów Sandomierski, 18–20 czerwca 2008 / Wyższy Urząd Górniczy, Instytut Gospodarki Surowcami Mineralnymi i Energią Polskiej Akademii Nauk. — Kraków : IGSMiE PAN, 2008
Autorzy (3)
- Szreder Zbigniew
- AGHPilecki Zenon
- Kłosiński Jerzy
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 40429 |
|---|---|
| Data dodania do BaDAP | 2008-10-03 |
| Rok publikacji | 2008 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Gospodarka Surowcami Mineralnymi - Mineral Resources Management |
Abstract
In the paper the problem of effectiveness of seismic profiling of attenuation and velocity of refracted P-wave in coal scam along mining excavation in conditions of exploitation coal scam edge above settled has been presented. The profiling of P-wave velocity changes was carried out according Dubinski method. For practical use of seismic attenuation profiling, special measurement and interpretation methodology has been prepared. The profiling of seismic attenuation requires a careful installing the sensors in such a manner that the measuring conditions of seismic wave be comparable in every point. One should avoid influence of a ricar-field in of wave excitation point in calculations of an attenuation coefficient. The measure of calculated attenuation is the value of attenuation coefficient based on determination of amplitude of refracted P-wavc. In the paper examples of attenuation coefficient and velocity of refracted wave changes in the zones of exploitation scam edge have been described. The usefulness of attenuation coefficient for such analysis has been underlined due to its greater sensitivity for changes of the state of stress and deformation in coal scam comparing to changes of refracted P-wave velocity.The value of an attenuation coefficient may change in repeatedly more percentage intervals as compared with changes of the value of seismic wave velocity. This issue has a significant practical meaning under operating conditions at large depths because wave velocity increases are smaller together with growth of stress. Whereas the attenuation coefficient increases diminish in a smaller degree as the stress increases. The attenuation coefficient may be more effective indicator of the state of stress and deformation as compared to seismic wave velocity under these conditions. It is shown that attenuation can be interested parameter complementary to refracted wav,.- velocity in coal scam, especially in high stress conditions.
