Crush pillars are used as part of the stope support in intermediate depth tabular mining stopes. Crush pillar design should ensure that the pillars crush when formed at the mining face. This behaviour of the pillars is ...
Du Plessis, Michael; Malan, D.F. (Daniel Francois)(Southern African Institute of Mining and Metallurgy, 2018-03)
Crush pillars have been extensively applied on the Merensky Reef horizon
since the late 1970s. Once in a crushed state, the residual strength of the
pillar provides a local support function and must support the hangingwall
to ...
