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Modern Hydraulic Filling In Underground Metal Mines, Rainer Gevers
Modern Hydraulic Filling In Underground Metal Mines, Rainer Gevers
Bachelors Theses and Reports, 1928 - 1970
While the practice of back-filling is almost as old as mining, it was only when modern machines made possible the removal of vast tonnages of rock, that the support of underground workings-- by filling work-out stopes-- became peremptory from both the humane and economic aspects.