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Radial particle-size segregation during packing of particulates into cylindrical containers

January 1, 1973

In a series of experiments, soil materials were placed in long cylindrical containers, using various packing procedures. Soil columns produced by deposition and simultaneous vibratory compaction were dense and axially uniform, but showed significant radial segregation of particle sizes. Similar results were obtained with deposition and simultaneous impact-type compaction when the impacts resulted in significant container “bouncing”. The latter procedure, modified to minimize “bouncing” produced dense, uniform soil columns, showing little radial particle-size segregation. Other procedures tested (deposition alone and deposition followed by compaction) did not result in radial segregation, but produced columns showing either relatively low or axially nonuniform densities.

Current data suggest that radial particle-size segregation is mainly due to vibration-induced particle circulation in which particles of various sizes have different circulation rates and paths.

Citation Information

Publication Year 1973
Title Radial particle-size segregation during packing of particulates into cylindrical containers
DOI 10.1016/0032-5910(73)80079-8
Authors C.D. Ripple, R.V. James, J. Rubin
Publication Type Article
Publication Subtype Journal Article
Series Title Powder Technology
Series Number
Index ID 70010095
Record Source USGS Publications Warehouse
USGS Organization