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Seismic Activity and Flooding of Hard Coal Mines in the Ostrava-Karvina Coalfield
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SYSNO ASEP 0564961 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Seismic Activity and Flooding of Hard Coal Mines in the Ostrava-Karvina Coalfield Author(s) Koníček, Petr (UGN-S) RID, ORCID
Jiránková, Eva (UGN-S) ORCID, SAI
Kajzar, Vlastimil (UGN-S) RID, ORCID
Schreiber, J. (CZ)
Malucha, P. (CZ)
Schuchová, Kristýna (UGN-S) ORCIDNumber of authors 6 Source Title Journal of Sustainable Mining - ISSN 2300-3960
Roč. 21, č. 4 (2022), s. 249-260Number of pages 12 s. Publication form Online - E Language eng - English Country PL - Poland Keywords flooding of mine ; post-mining seismicity ; coal mines ; water level ; ground surface movement Subject RIV DH - Mining, incl. Coal Mining OECD category Environmental and geological engineering, geotechnics Method of publishing Open access Institutional support UGN-S - RVO:68145535 UT WOS 000899701600001 EID SCOPUS 85141745472 DOI 10.46873/2300-3960.1363 Annotation The termination of mining activities often results in post-mining problems and risks. One of these issues is the flooding of mines. Long-term mining in the Ostrava and Petrvald sub-basins in the Upper Silesian Coal Basin finished in 1994. Tens of coal seams were mined here, and the depth of mining reached more than 1000 m below the surface. Flooding of the Ostrava sub-basin started in 1994. The Ostrava and Petrvald sub-basins were flooded from one half only to prevent water from flooding into the Karvina sub-basin, where mining continued. The continual pumping of water has been carried out ever since. Only low-energy seismic events (up to 103 J) were recorded during the periods of flooding and water pumping. Only one high-energy seismic event was recorded here (108 J, magnitude of 3.5, 12 December 2017). This study presents the natural and mining conditions regarding the process of mine flooding, and the induced seismicity registered during the flooding of mines and the preservation of water at the stated level. Analysis of the flooding of mines in connection to the registered seismicity is presented. Probable reasons for the low seismic activity during the flooding of mines are also discussed. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2023 Electronic address https://jsm.gig.eu/journal-of-sustainable-mining/vol21/iss4/4/
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