Analysis of the sensitivity of the support unit static parameters to the changes in the inclination angle of a roof bar
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2015, Vol 521, Issue 1
Abstract
The article presents how the changes in the inclination angle of a roof bar impact the static load of the support unit elements. The change of this angle is the result of adapting geometrical features of the support unit to an unparallel roof and floor of the excavation. On the basis of low, middle and high support units it was found out that minor changes in the inclination angle of the roof bar result in significant changes in the load-bearing capacity of the support unit and the values of forces in the joints of the support development mechanism.
Authors and Affiliations
Jakub Królak, Stanisław Szweda
Keywords
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