Date of Award
Bachelor of Science in Mining Engineering
Professor Koehler S. Stout
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.
Gevers, Rainer, "Modern Hydraulic Filling in Underground Metal Mines" (1956). Bachelors Theses and Reports, 1928 - 1970. 414.