Browsing by Subject "parameter tg Beta"

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Access status: Open Access ,
Parametr tg Beta jako miara skłonności górotworu do tąpań
(Wydawnictwa AGH, 2008) Konopko, Władysław; Bukowska, Mirosława
The geological and mining law introduces the term of »the rock mass susceptible to bumps«. Many classifications of rocks or rock mass concern only the general building, tunnel building or hydrogeological building. They describe rocks or rock mass properties on the small area. These classifications are not very useful for the bump issue, although the bumps result from all the geological an mine conditions of the mine workings, especially conditions that come as well from the strength, lithological and petrographic properties of rocks in the direct neighbourhood of the mine working, up to the ground surface, as their changes resulting from the geological disharmony and exploitation events in the concrete time and place. The author presented in the article the degree of the assessment of rock mass susceptibility to bumps on the basis of the range of main exploitation influence on the ground surface, in the theory Budryk-Knothe known as tg $\beta$.