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Browsing by Subject "intergate pillars"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Wpływ szerokości filara oporowego dla chodnika przyścianowego na stan naprężenia w jego otoczeniu
    (Wydawnictwa AGH, 2011) Majcherczyk, Tadeusz; Niedbalski, Zbigniew; Małkowski, Piotr
    The paper presents the analysis of the influence of support pillar width left between a goaf and a gate drifted for the consecutive longwall on the state of stress and strain. The widths of pillar from 4 m to 10 m were analyzed to ensure the gate functionality for the subsequent longwall panel. The case concerns the necessity of defining main gate locations which close the panel for longwalls B-11 and B-11a in the seam 348. The mining and geological conditions on the spot were found as exceptionally hard due to bed inclinations up to 240, methane hazard and goafs on both sides of the longwall panel. The location of the analyzed workings takes into consideration both the economic conditions and the optimal pillar width, which additionally ensure gate stability.