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Excessive soft soil deformation

Stephen Wall — Tue, 21 Jun 2022 17:59:20 GMT

Hi team,

I am modelling backfilling of tailings and placement of overburden using a soft soil creep model and have been having trouble preventing the tailings shooting out over the bund like toothpaste when covered by the overburden completely. These are all modelled as consolidation phases with forced drained behaviour in the tailings.

The only way to stop this is to leave the end of it open, however, I want to cover the tailings. Can you please provide guidance to resolve this?

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Tue, 30 Nov 2021 00:53:22 GMT

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Primary and Secondary Consolidation Coefficients

Stephen Wall — Tue, 30 Nov 2021 10:30:40 GMT

I am attempting to complete consolidation analysis using "alternatives" primary and secondary consolidation coefficients, however, every time I exit the model and enter again it reverts back to lambda and kappa. It seems like if I stay in the model it will show the alternatives are selected, however, I am just wondering why this is occurring and if it is affecting my models?