Numerical Modelling of Instability in Strain-Softening Soils - NGI

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34Smårød, 20.12.06ICG Symposium Geohazards and Society November 2012
Slides by Francesco Bonadies, Univ. SalernoVolume [m 3 ] 750.000Length [m] 200Width [m]500Slip surface [m] 15Three main phases:- area A first- area B next,- area C finalA fill of about 7 meters is the triggering agent ?Simulated by NGI-ADPSoft as part of the SVV-NVE project :Effekt of progressive failure on physical development of areas with quick clay
Page 1 and 2: 1Numerical Modelling of Instability
Page 3 and 4: 3KaareHöeg1972
Page 5 and 6: 5Strain-Softening Soils• Kattmark
Page 7 and 8: 7Strain-Softening Soils• Esp 01.0
Page 9 and 10: 9Sensitive clay• CIUc triaxial te
Page 11 and 12: (ICSMFE Mexico, 1969)ICG Symposium
Page 13 and 14: RIGID SPRINGSCOMPRESSIBLE SPRINGSΔ
Page 15 and 16: ICG Symposium Geohazards and Societ
Page 17: 17Downward progressive failureEAFor
Page 20 and 21: 20Downward progressive failureEAFor
Page 22: 22Downward progressive failure• I
Page 25 and 26: 25Downward progressive failureICG S
Page 27 and 28: 27Softening gives mesh dependencyδ
Page 29 and 30: Regularization - non-local strainp*
Page 31 and 32: Slope stability problem“Almost”
Page 33: Material model - NGI-ADPSoftτs uCf
Page 37 and 38: 37SmårødICG Symposium Geohazards
Page 39 and 40: Slides by Francesco Bonadies, Univ.
Page 41 and 42: Slides by Francesco Bonadies, Univ.
Page 43 and 44: Initial stresses are difficult to e
Page 45 and 46: Effect of softening:Karlsrud/NGIHan
Page 47 and 48: 47Excess pore pressure• Strain so
Page 49 and 50: 49Concluding remarks• Numerical M

Numerical Modelling of Instability in Strain-Softening Soils - NGI

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