Effects of Vibratory Compaction

Aspects governing the execution of vibratory compaction projects are discussed. The importance of careful planning and implementation is emphasised. Recent developments of vibratory compaction methods are presented. Design charts help to assess the suitability of soils for vibratory compaction. A hypothesis is advanced considering various factors governing the emission of vibrations from a vertically vibrating probe. It is shown that as a result of vibratory compaction, horizontal stress increase significantly and changes the stress conditions, which result in a permanent overconsolidation effect. Overconsolidation due to vibratory soil compaction is at present not taken into account in geotechnical design. The findings are illustrated with results from field measurements.