The influence of grain size distribution and grain shape on the small strain shear modulus of North Sea sand

Small strain shear modulus of three North Sea sand samples and one onshore sand sample from the North Sea coast has been measured and the results are compared with existing empirical equations. Appreciable differences between the measured data and predictions are presented as functions of sand type, void ratio and stress level. The discrepancies are possibly influenced by amount of rounded particles in the sand composition.