In this report the methods used to analyse the compaction process using pneumatic-tyred rollers are developed and applied to vibrating rollers and plate compactors and to compaction by impact. Calculations were made for cohesive and granular soils using the maximum shear stress distribution with depth under the compactive pressure. Good agreement between the measured and calculated dry densities were found for the vibrating rollers. Impact effects were significant for some vibrating compactors as well as for the impact compactors. The compaction of soils prone to overstressing are also considered.

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