Sand Compaction with Vibratory Rollers

Abstract

An investigation of some of the factors influencing sand compaction with vibratory smooth-wheeled rollers is reported. Soil density determinations were made in test pits before and after compaction of an eight-foot high test embankment and two successive two-foot lifts. Comparisons are made between compacted density-depth profiles for 2, 5, 15, and 45 roller coverages and for several different roller operating frequencies. Measurements of roller drum acceleration and dynamic stress and acceleration in the soil at various depths below the roller are used to identify some of the mechanisms controlling vibratory compaction.