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Browsing by Subject "mining workings"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Konwergencja wyrobisk chodnikowych na podstawie wyników obliczeń numerycznych i ich weryfikacja pomiarami in situ
    (Wydawnictwa AGH, 2008) Małkowski, Piotr; Niedbalski, Zbigniew; Majcherczyk, Tadeusz
    Numerical models are common in use to evaluate the roadways' stability. The main task to solve the problem is to choose the appropriate model and rock-mass parameters. Only the above will ensure the working's proper function. Simultaneously only underground research carried out after the working drifting can confirm any necessary correction of numerical calculations. The numerical calculation results for two coal mine roadways were presented in the paper. The steel arch support was used in these workings - the most popular in Poland. Convergence measurements gave the possibility to recalculate the task. Several new elastic and elasto-plastic models were designed using the two years research. Initial assumptions were modified using the research data and the most accurate numerical models for evaluation of the workings' stability in the coal mines were found.