Analysis on Dynamic Compaction and Mechanical Behavior of Reclamation Foundation Using Soil Tests

Donghong Fan

doi:10.3139/120.110509

Article

Analysis on Dynamic Compaction and Mechanical Behavior of Reclamation Foundation Using Soil Tests

Donghong Fan

Published/Copyright: December 11, 2013

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From the journal Materials Testing Volume 55 Issue 11-12

Abstract

The dynamic compaction method was used to analyze the consolidation of a railway foundation. Based on the physical characteristics of sands, the parameters of an extended model were proposed by the soil tests. Such model is powerful for investigations of mechanical behaviour of sands under the dynamic compactions. By comparing with experimental results, it is indicated that the dynamic compaction was an effective method for understanding the consolidation of railway foundations. So, the numerical model based on the infinite element analysis was very significant for the practical conditions without the boundary reflection under the dynamic compactions.

Kurzfassung

Um die Verdichtung von Eisenbahnfundamenten zu analysieren, wurde das dynamische Verdichtungsverfahren angewendet. Basierend auf den physikalischen Charakteristika von Sanden ergaben sich aus den Bodenversuchen die Parameter für ein erweitertes Modell. Dieses Modell erweist sich als leistungsfähig für die Untersuchung des mechanischen Verhaltens von Sanden unter dynamischer Verdichtung. Durch Vergleich mit experimentellen Daten zeigt sich, dass die dynamische Verdichtung ein effektives Verfahren zum Verständnis der Verdichtung von Eisenbahnfundamenten darstellt. Denn das numerische Modell basierend auf der Finite Elemente Analyse bestätigte sich als sehr leistungsfähig zur Darstellung der praktischen Bedingungen ohne Grenzreflektion unter den dynamischen Verdichtungen.

References

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Published Online: 2013-12-11

Published in Print: 2013-11-15

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https://doi.org/10.3139/120.110509