Each compaction method significantly affects the engineering properties of compacted soils by producing its own distinctive internal structure. Independently of the mechanics and type of compaction energy applied in field, the design requirements for embankments construction should satisfy standard Proctor moisture-density criteria. The aim of this paper is to investigate the pre- and post-construction strength of a clayey silt used as fill material on an experimental embankment built along the Po river, Italy. After seven years of the embankment construction, undisturbed specimens were obtained from the embankment body. Suction controlled triaxial test were conducted on the retrieved samples in order to determine the postconstruction shear strength. The results have been compared with the obtained by Vasallo (2003) on samples compacted by using standard Proctor method. The experimental procedures, the post-construction results and the comparison with the pre-construction parameters are presented and discussed in the paper.
Effect of loading rate on the behaviour of unsaturated soils / J. C., Rojas; Mancuso, Claudio. - STAMPA. - (2009), pp. 761-764. (Intervento presentato al convegno XVII International Confenrnce on Soil Mechanics and Geotechnical Engineering tenutosi a Alexandria, Egypt nel 5-9 October 2009).
Effect of loading rate on the behaviour of unsaturated soils
MANCUSO, CLAUDIO
2009
Abstract
Each compaction method significantly affects the engineering properties of compacted soils by producing its own distinctive internal structure. Independently of the mechanics and type of compaction energy applied in field, the design requirements for embankments construction should satisfy standard Proctor moisture-density criteria. The aim of this paper is to investigate the pre- and post-construction strength of a clayey silt used as fill material on an experimental embankment built along the Po river, Italy. After seven years of the embankment construction, undisturbed specimens were obtained from the embankment body. Suction controlled triaxial test were conducted on the retrieved samples in order to determine the postconstruction shear strength. The results have been compared with the obtained by Vasallo (2003) on samples compacted by using standard Proctor method. The experimental procedures, the post-construction results and the comparison with the pre-construction parameters are presented and discussed in the paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
