The Use Of Steel Fibre Reinforced Shotcrete For The Support Of Mine Openings
Organization: The Southern African Institute of Mining and Metallurgy
Jan 1, 1998
What separates the support of mining openings from the support of similar civil engineering structures is the fact that mine openings have to survive large deformations as a result of changing stress conditions induced by progressive mining. Steel fibres impart to concrete and shotcrete a high degree of ductility which not only allows the shotcrete and concrete linings to absorb important rock movements but also to increase its bearing capacity by a redistribution of the loads. A range of applications will be discussed technically and economically.