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Browsing by Subject "stability of excavations"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Ocena stateczności wyrobisk trasy turystycznej i komór sanatoryjnych w Kopalni Soli »Bochnia« wraz z projektem opomiarowania nowych obiektów turystycznych
    (Wydawnictwa AGH, 2005) Chmura, Janusz; Migdas, Tomasz
    Most of accessible excavations of the »Bochnia« salt mine are several hundred years old and over his long time span they were frequently rebuilt and protected. For this reason , it has been very important to determine the stability of these underground workings, which are frequently visited by tourists and also used by out-door patients being treated in two sanatorium units. Analyses of distortion of excavation outlines are a significant element of these investigations as they allow establishing stress and strain within the rock masses. As a result of such measurements it is possible to gauge current and predict future displacements of excavation outlines, describing thus their tendencies and hazard for people staying underground.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Określenie lokalizacji chodnika przyścianowego w warunkach oddziaływania zrobów w pokładzie niżej leżącym
    (2007) Majcherczyk, Tadeusz; Niedbalski, Zbigniew; Małkowski, Piotr
    The paper presents the results of numerical calculations considering the gangway location during the drifting in the active roof fall zone of the underlaying seam. These calculations were the base of changing the gangway location in relation to the goaf. The presented solution is both safe and economical. Nowadays mining works points that this proposal of changing the gangway location influenced by the goaf zone is correct.