Počet záznamů: 1
Seismic activity of hard coal longwall mining in protective shaft pillar near closed room and pillar panel
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SYSNO ASEP 0546794 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Seismic activity of hard coal longwall mining in protective shaft pillar near closed room and pillar panel Tvůrce(i) Koníček, Petr (UGN-S) RID, ORCID
Kajzar, Vlastimil (UGN-S) RID, ORCID
Schreiber, J. (CZ)Celkový počet autorů 3 Číslo článku 012087 Zdroj.dok. IOP Conference Series: Earth and Environmental Science, 833. - Bristol : IOP Publishing Ltd., 2021 - ISSN 1755-1307 Poč.str. 9 s. Forma vydání Online - E Akce EUROCK 2021 Conference on Rock Mechanics and Rock Engineering from Theory to Practice Datum konání 20.09.2021 - 25.09.2021 Místo konání Turin Země IT - Itálie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova seismic activity ; hard coal ; longwall mining ; shaft pillar ; room and pillar panel Vědní obor RIV DH - Báňský průmysl vč. těžby a zpracování uhlí Obor OECD Mining and mineral processing Institucionální podpora UGN-S - RVO:68145535 EID SCOPUS 85115158882 DOI https://doi.org/10.1088/1755-1315/833/1/012087 Anotace Monitoring of seismic activity during mining in the Upper Silesian Coal Basin is a part of rockburst prevention system. System is composed from two parts - seismological (SL) and seismoacoustic (SA) monitoring. Evaluation of data from both systems allows describing stress deformation process during mining and evaluation of rockburst mitigation techniques effectiveness. Described longwall was mining in a protective pillar after two trial room and pillar (R&P) testing panels were completed. Evaluation of seismic activity was carried out by special software tool which allows simulating daily advance of mining and registered seismic activity. Different mining stages were identified for evaluation of seismic activity (e.g. weekly and daily summary graph of seismic activity, Benioff graph, event rate graph, energy vs time graph etc.). Evaluation of seismic activity provides many interesting results, mainly in the area of longwall panel termination when one pillar of the R&P trial was impacted by the longwall. This work presents seismic activity analysis, detailed site conditions and implemented active rockburst measures and its effectiveness. Analysis of seismic activity allows to formulate conclusions for longwall mining operations and evaluation of seismic activity in unfavourable geomechanical conditions within the area of protective shaft pillar border Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2022 Elektronická adresa https://iopscience.iop.org/article/10.1088/1755-1315/833/1/012087
Počet záznamů: 1