Modelling of vibrocompaction using hypoplasticity with intergranular strains Conference Paper

abstract

• Soils can be best compacted by repeated shearing. The strain amplitude plays an important role for the maximum compaction that can be reached. Experimental evidence emphasises a vital impact of simultaneous multidirectional shear loading on the rate and magnitude of soil compaction. Vibrocompaction by deep vibration was studied in the light of these findings by numerical simulations. In a dynamic FE analysis with elastic material behaviour strain paths were determined. Since shear stiffness strongly degrades with increasing magnitude of shear strain, a strain amplitude-dependent stiffness was introduced. The FE calculations were run multiple times to iterate the appropriate secant stiffness for each distance from the vibrator. Subsequently, the strain paths were used to control element simulations using again the intergranular strain enhanced hypoplastic constitutive model. 2009 IOS Press.

authors

• Arnold, Michael

published proceedings

• Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering

author list (cited authors)

• Arnold, M., & Herle, I.

complete list of authors

• Arnold, M||Herle, I

publication date

• December 2009

Digital Object Identifier (DOI)

• 10.3233/978-1-60750-031-5-2334

International Standard Book Number (ISBN) 13

• 9781607500315

start page

• 2334

end page

• 2337

volume

• 3