Reference P-wave velocity in coal seams at great depths in Jastrzebie coal mine
Authors:
- Jakub Kokowski,
- Zbigniew Szreder,
- Elżbieta Pilecka
Abstract
In the study, the determining of the reference velocity of the P-wave in coal seams used in seismic profiling to assess increases and decreases in relative stresses at large depths has been presented. The seismic profiling method proposed by Dubinski in 1989 covers a range of depth up to 970 m. At present, coal seams exploitation in Polish coal mines is conducted at greater depths, even exceeding 1200 m, which creates the necessity for a new reference velocity model. The study presents an empirical mathematical model of the change of the P-wave velocity in coal seams in the geological conditions of the Jastrzebie coal mine. A power model analogous to the Dubinski’s one was elaborated with new constants. The calculations included the results from 35 measurements of seismic profiling carried out in various coal seams of the Jastrzebie mine at depths from 640 to 1200 m. The results obtained cause changes in the result of calculations of seismic anomalies. Future validation of the proposed model with larger data set will be required.
- Record ID
- CUTc22932f0327b405eb7688b7552c81600
- Publication categories
- ; ;
- Author
- Journal series
- E3S Web of Conferences, ISSN 2555-0403, e-ISSN 2267-1242, Irregular
- Issue year
- 2019
- Vol
- 133
- Pages
- [1-10]
- Article number
- 01011
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 9-10; Bibliografia (liczba pozycji) - 21; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 133
- Substantive notes
- Section: Application of Geophysical Methods
- Conference
- Applied Geophysics 2019 : 5th International Conference on Applied Geophysics (AG 2019), 2019, 27-06-2019 - 28-06-2019, Ostrava, Czechy
- Keywords in English
- rock burst hazard, Dubinski method, seismic profiling, refracted P-wave
- DOI
- DOI:10.1051/e3sconf/201913301011 Opening in a new tab
- URL
- https://www.e3s-conferences.org/articles/e3sconf/abs/2019/59/e3sconf_ag2019_01011/e3sconf_ag2019_01011.html Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTc22932f0327b405eb7688b7552c81600/
- URN
urn:pkr-prod:CUTc22932f0327b405eb7688b7552c81600
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