Ground surface uplift during hardcoal longwall mining
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F22%3A00556486" target="_blank" >RIV/68145535:_____/22:00556486 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1365160922000673" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1365160922000673</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijrmms.2022.105099" target="_blank" >10.1016/j.ijrmms.2022.105099</a>
Alternative languages
Result language
angličtina
Original language name
Ground surface uplift during hardcoal longwall mining
Original language description
Ground surface uplift was detected during longwall mining in the Lazy Mine, a hard coal mine in the Czech part of the Upper Silesian Coal Basin, Czech Republic. The greatest uplift was 218 mm, based on surface point levelling by comparing surface points with heights of non-mined areas. This uplift occurred during subcritical mining at an average depth of 740 m below the surface. The mined coal seam is situated below the previously mined part of the multi-seam deposit. This study aims to provide a geomechanical explanation for ground surface uplift observed during longwall mining. The source of surface uplifts were deep inside the rock mass, therefore, enabling only the examination of geological, geomechanical, seismic, and technical mining data for uplift occurrence analysis. Therefore, the spatiotemporal evaluation of the observed vertical displacement and induced seismicity data was processed, and the observed ground surface was compared with empirical subsidence. Two time periods with surface uplifts during longwall mining were evaluated. Thick, competent rock layers, together with specific geomechanical conditions, were identified as the main characteristics responsible for the uplift.
Czech name
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Czech description
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Classification
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
20703 - Mining and mineral processing
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Rock Mechanics and Mining Sciences
ISSN
1365-1609
e-ISSN
1873-4545
Volume of the periodical
153
Issue of the periodical within the volume
May 2022
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
105099
UT code for WoS article
000793123700004
EID of the result in the Scopus database
2-s2.0-85127120595