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Transport of total tailings paste backfill: results of full-scale pipe test loop pumping tests.
Clark-CC; Vickery-JD; Backer-RR
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9573, 1995 Jan; :1-27
This report presents the results of tests conducted by the U.S. Bureau of Mines to determine the transport characteristics of highly concentrated paste backfill mixes made from dewatered total mine tailings. The slurry concentrations of the mixes were all above 78 pct by weight with slumps ranging from 6.4 to 16.5 cm (2.5 to 6.5 in). Laboratory material property tests and full-scale pumping tests were conducted using pipe diameters of 102, 128, and 154 mm (4, 5, and 6 in) and a positive-displacement pump. The results indicated that the tested backfill mixes can be successfully transported as a stiff paste and identified the influence of and the interaction among the various mix and system variables.
Mining-industry; Underground-mining; Rock-mechanics; Room-and-pillar-mining; Waste-disposal; Ground-control
Report of Investigations
NTIS Accession No.
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9573
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division