Analisis of the load capacity of a skeletal support construction for use in dog, or blind-heading junctions

Author: S. Stalega

The paper presents a new type of steel rib construction for the support of dog, or blind-heading junctions.

The design, developed by the author, is currentiy being manufactured in the "Łabędy" Steel Plant.

Calculations of the strength of the support under assigned external loadings set up by rock mass were made using PRO-MES RAMA 3D program.

The values obtained for the moments of bending and stress, and the internal strength of the elements of the structure lie within permitted limits.

From observations and in-situ examinations it was demonstrated that the structure could find a useful application in the difficult geological and mining conditions in hard coal mines.