Počet záznamů: 1
Stress changes and seismicity monitoring of hard coal longwall mining in high rockburst risk areas
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SYSNO ASEP 0491714 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Stress changes and seismicity monitoring of hard coal longwall mining in high rockburst risk areas Tvůrce(i) Koníček, Petr (UGN-S) RID, ORCID
Waclawik, Petr (UGN-S) RIDCelkový počet autorů 2 Zdroj.dok. Tunnelling and Underground Space Technology. - : Elsevier - ISSN 0886-7798
Roč. 81, č. 81 (2018), s. 237-251Poč.str. 15 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova stress changes ; seismicity ; rockburst ; rockburst prevention Vědní obor RIV DH - Báňský průmysl vč. těžby a zpracování uhlí Obor OECD Civil engineering CEP LO1406 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy VG20102014034 GA MV - Ministerstvo vnitra Institucionální podpora UGN-S - RVO:68145535 UT WOS 000446949500021 DOI 10.1016/j.tust.2018.07.019 Anotace Rockburst represents a very dangerous phenomenon in deep underground mining as well as in underground constructions in unfavourable conditions (great depth, high horizontal stress, proximity of important tectonic structures, etc.). The rockburst problem relates to the natural and mining conditions of the rock mass. It is very difficult to decide which of the factors prevails, but we generally assume that it is the occurrence of competent rock layers in the rock mass. The destress blasting method is a very important rockburst control technique aims to competent rocks. The case study describes the control of rockburst risk by destress blasting in an example of a longwall of the Upper Silesian Coal Basin. Monitoring of stress changes and induced seismicity was implemented in the selected longwall here and a description of these techniques is given. The paper describes the natural, geomechanical, and mining conditions of the investigated locality in detail. Stress changes ahead of the advancing longwall face as well as registered induced seismicity depending on the longwall advance are analysed, including the application of the destress blasting technique. Stress release efficiency, as one goal of the destress blasting technique, is analysed according to the registered seismicity using the authors’ own methodology: seismic effect calculation. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2019 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0886779817308763
Počet záznamů: 1