I have seen quite a bit of samples with overconsolidation ratio (OCR) less than 1 (from oedometer tests). Some have told me that it is a testing artefact due to disturbance of the soil, they say technically OCR cannot be less than 1. Some others say that this is due to the fact that the samples are still undergoing consolidation, so the P'c hasn't reached the final P'c at 100% consolidation. What do you think?