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On Sample Hall Effect Transducers (HE) are very light and easy to handle, therefore can be mounted to the sample for small strain measurement with minimal disturbance to the sample.
Small strain stiffness values are becoming more commonly required by consultants due to the parameters required for FE models. It has been recognised for many years that small strain measurement is more representative to the operational strain, and that the small strain stiffness curve is required for any advanced modelling of the soil.
