Numerical analyses of the failure of Perniö embankment - Numerical modelling using Creep-SCLAY1S in Plaxis
Typ
Examensarbete för masterexamen
Program
Infrastructure and environmental engineering (MPIEE), MSc
Publicerad
2020
Författare
Roos, Christoffer
Molander, Fanny
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
With the increasing population and people travelling with a higher demand for
sustainable travelling transport alternatives, the railway network is needed to be
developed. In this thesis an earlier performed failure test embankment in Perniö,
Finland is analysed and simulated numerically in Plaxis, using the creep-SCLAY1S
model. It is discussed however the old railway embankments can handle higher axial
load than they were initially buildt for or if reinforcements are needed. The result
and discussion in this thesis compare the measured results from the performed failure
test with the modelled results performed in this thesis. The compared results were
similar except from the displacements and the results show that the old railway
has the capacity to carry higher loads than initially predicted.In conclusion, it is
discussed however numerical methods are suitable for analysing failure or not. Thus
Numerical models are precise and take many parameters and aspects into account
when calculating failure the Plaxis tool are calculating until the soil fails and are
not able to simulate a load coming from a train.
Beskrivning
Ämne/nyckelord
Creep-SCLAY1S , Numerical model , Embankment , Failure test , Soft soil , Perniö , Plaxis