Nourin · Test interpretation

Oedometer test interpretation

Nourin applies the definitions of the standard to the quantities calculated by CiviLab: it rates the consolidation state of the soil and estimates the settlement duration.

Nourin pricing Discover Nourin Download a sample Nourin interpretation (PDF)

What Nourin reads in the sheet

  • The e-log σ' oedometer curve and the loading stages;
  • The indices Cc and Cs and the preconsolidation stress σ'p;
  • The oedometer moduli Eoed and the coefficients mv;
  • The consolidation curves of each stage;

What Nourin does with it

  • Determines the consolidation state: normally consolidated, overconsolidated or underconsolidated;
  • Calculates the coefficient of consolidation cv using the Taylor and Casagrande methods;
  • Estimates the settlement duration using Terzaghi's theory, t = TvH²/cv, expressed in readable units;
  • Interpolates the void ratio at a given stress;
  • Flags stages whose curve does not allow cv;
No formula is reinvented: Nourin starts from the quantities already calculated by the production sheet.

References

XP P 94-090-1 (Annexes A and B)Terzaghi's consolidation theory

See Nourin work on your tests

Nourin is the artificial intelligence agent built into CiviLab 2027. It flags errors in test sheets, interprets results and writes reports.

Pricing and purchase All tasks