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Rockburst in Ostrava-Karvina Coalfield
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SYSNO ASEP 0475818 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Rockburst in Ostrava-Karvina Coalfield Author(s) Ptáček, Jiří (UGN-S) RID Source Title Procedia Engineering - ISRM European Rock Mechanics Symposium EUROCK 2017. - Amsterdam : Elsevier Ltd., 2017 / Koníček P. ; Souček K. ; Konečný P. - ISSN 1877-7058 Pages s. 1144-1151 Number of pages 8 s. Publication form Online - E Action ISRM European Rock Mechanics Symposium EUROCK 2017 Event date 20.06.2017 - 23.06.2017 VEvent location Ostrava Country CZ - Czech Republic Event type WRD Language eng - English Country NL - Netherlands Keywords rockburst ; coal mining ; rockburst risk ; rockburst protection Subject RIV DH - Mining, incl. Coal Mining OECD category Mining and mineral processing Institutional support UGN-S - RVO:68145535 UT WOS 000416996000144 EID SCOPUS 85022202584 DOI 10.1016/j.proeng.2017.05.289 Annotation More than 450 rockbursts, many of them with fatal consequences, have been monitored in Ostrava-Karviná Coalfield since the start of the last century. Right from the start of their appearance, miners have made efforts to avoid them or at least to reduce their consequences. Many researchers and geomechanical experts have explored the rockburst mechanism, its regularities and natural relations. Nevertheless, there are many things about rock mass properties and rock mass behavior that we do not know yet. Together with gaining valuable knowledge, the development of rockburst protection methods was achieved. The development of prognosis and prevention methods as well as a contemporary system for their application in the coal mines in Ostrava-Karviná Coalfield is described in the contribution. It considers the history of rockburst cognition, reflecting new experience and consequently new opinions on the mechanism of different types of rockburst in the specific geological conditions in the Upper Silesian Coal Basin. Geomechanical methods comprising destress drilling, destress blasting and seams watering as well as geophysical methods of rockburst prediction and prevention are presented. All are supplemented by examples of the application of protection methods in coal mines where there is a risk of rockburst. Opinions on the effectiveness and usability of individual methods of rockburst prevention based on practical experience are stated in conclusion. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2018 Electronic address http://www.sciencedirect.com/science/article/pii/S1877705817324293
Number of the records: 1