Seismic Activity and Flooding of Hard Coal Mines in the Ostrava-Karvina Coalfield

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F22%3A00564961" target="_blank" >RIV/68145535:_____/22:00564961 - isvavai.cz</a>
Result on the web
<a href="https://jsm.gig.eu/journal-of-sustainable-mining/vol21/iss4/4/" target="_blank" >https://jsm.gig.eu/journal-of-sustainable-mining/vol21/iss4/4/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.46873/2300-3960.1363" target="_blank" >10.46873/2300-3960.1363</a>

Result language
angličtina
Original language name
Seismic Activity and Flooding of Hard Coal Mines in the Ostrava-Karvina Coalfield
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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