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Browsing by Subject "coal mining exploitation"

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    Item type:Article, Access status: Open Access ,
    Komputerowa symulacja stanu naprężenia w sąsiedztwie wyrobiska górniczego z uwzględnieniem przepływu gazu
    (Wydawnictwa AGH, 2010) Walaszczyk, Jan; Florkowska, Lucyna
    One of the natural dangers in coal mining in Poland is methane migration between rock layers. The following paper discusses that issue. The main aim of the paper was to obtain stress distribution around mining excavation area, considering the influence of methane pressure and the process of methane migration through gaps into layers previously without it. In particular, the paper presents a simulation of processes occurring in rock mass during coal exploitation when the migration of methane from lower layers is possible. The issue was solved by numerical modelling, using the Finite Element Method. MES-Abaqus code was used for calculations.