Počet záznamů: 1
Rock and Gas Outbursts in Copper Mines: Use of Brazilian Tests to Evaluate the Work of Disintegration of Rock Resulting from Stresses Produced by Gas Present in its Porous Structure
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SYSNO ASEP 0559449 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Rock and Gas Outbursts in Copper Mines: Use of Brazilian Tests to Evaluate the Work of Disintegration of Rock Resulting from Stresses Produced by Gas Present in its Porous Structure Tvůrce(i) Kozieł, K. (PL)
Nowakowski, A. (PL)
Sitek, Libor (UGN-S) RID, ORCID
Skoczylas, N. (PL)Celkový počet autorů 4 Zdroj.dok. Rock Mechanics and Rock Engineering. - : Springer - ISSN 0723-2632
Roč. 55, č. 10 (2022), s. 6209-6225Poč.str. 17 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. AT - Rakousko Klíč. slova dolomite and gas outbursts ; Brazilian test ; copper mines ; rock disintegration work Vědní obor RIV DH - Báňský průmysl vč. těžby a zpracování uhlí Obor OECD Mechanical engineering Způsob publikování Omezený přístup Institucionální podpora UGN-S - RVO:68145535 UT WOS 000825018200002 EID SCOPUS 85133609285 DOI 10.1007/s00603-022-02955-z Anotace Rock and gas outbursts occur most frequently in coal mining. Gas-induced geodynamic events in dolomite are a new and unexplored phenomenon. In the last time, two outbursts of gas and dolomite have occurred in the Legnica-Głogów Copper Region in southwestern Poland, which is one of the world’s largest copper ore mining regions. Gas-induced geodynamic events are dependent on the co-occurrence of two factors: rock porosity, and the presence of gas under significant pressure in the pores and crevices of the rock. This paper presents a condensed energy balance for the phenomenon of outbursts of dolomites and gases. The quantity of energy depends on the type of transformation taking place during decompression. The work produced enables first the disintegration of the rock, and then its transportation along the mine working space. This paper has focused on the estimation of the energy required to disintegrate the rock. It has been estimated that 0.38 MJ is needed for the size reduction of 1 m3 of ejected mass. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2023 Elektronická adresa https://link.springer.com/content/pdf/10.1007/s00603-022-02955-z.pdf
Počet záznamů: 1