Podrobnosti záznamu

    Rock mass fracturing in main gate roof behind advancing longwall face
    Koníček, Petr
    Kukutsch, Radovan
    Ptáček, Jiří
    Vavro, Martin
    Waclawik, Petr
    5th International Colloquium on Geomechanics and Geophysics (24.06.2014-27.06.2014 : Ostravice, Karolínka, Česká republika)
Typ dokumentu
Zdrojový dokument - monografie
    5th International Colloquium on Geomechanics and Geophysics. GECO 2014. 5
    S. 45-46
    Autoři celkem: 5
    Rozsah: 2 s. : P
Předmětová kategorie
    fracturing zone prediction
    longwall exploatation
    main gate
    rock mass fracturing
    RQD testing
Klíčové slovo
Abstrakt (anglicky)
   To increase the stability of roadways, high cable bolts and short steel beams are increasingly used nowadays, which should lead higher stability of the supporting steel arches during both driving of roadways and primarily during mining of longwall panels in the Czech part of the Upper Silesian Coal Basin. This high anchoring is also obtained by the substitution of middle hydraulic props used to stabilize steel arches support ahead of the advancing longwall. If the roadways are re-used, high cable bolts are used to subsequently stabilize a support frame construction behind the advancing longwall. Anchoring in a high non-fracturing rock mass of a roadway roof is necessary for the effective function of these cable bolts.
    AV ČR Brno, Ústav geoniky
Kód přispěvatele
    AV ČR, ÚG
Zdrojový formát
Datum importu
    24. 10. 2014