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Finite Element simulation of a slow moving natural slope in the Upper-Austrian Alps using a visco-hypoplastic constitutive model
- Source :
- Geomorphology. 103:136-142
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- A large-size creeping natural slope was simulated with the Finite Element (FE) method, using a visco-hypoplastic material model, which describes the mechanical behaviour of cohesive soils, allowing for viscous effects (i.e. creep, relaxation and rate-dependence of stiffness). First, the required material parameters were determined by means of standard geotechnical laboratory tests using representative soil samples taken from the slope. Then a FE mesh of a slope section was constructed and boundary conditions were established. The slope movements were simulated and compared with inclinometer measurements, which were available for a period of 16 years. The calculation results are in good agreement with the observed velocities. A parameter study was carried out in order to assess the influence of slope angle, initial void ratio, material parameters as well as their spatial distribution.
Details
- ISSN :
- 0169555X
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Geomorphology
- Accession number :
- edsair.doi...........5788b07758dc3a4cbeccc912ef7708c1