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Electrokinetic Densification of Hydraulic Backfill - a Field Test.
NTIS: PB 247 224 :20 pages
Hydraulic backfill consisting of siliceous mill tailings was successfully dewatered and consolidated by electrokinetics in a field test conducted by the Bureau of Mines at the star mine, burke, Idaho. A stope at the 2,000-foot level was filled in such a way that slimes and coarse sand were retained in the stope. Following settlement of solids and decant of surface water, direct current applied between buried electrodes created a firm, dense material in approximately 3 hours. This rapid densification of fine-grained material demonstrated the utility of this method and suggests other applications, particularly in the control of slime deposits that cause serious problems in many deep mines.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 247 224
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division