Relationship between Dilatometer Test Parameters and In Situ Sand Stiffness

摘要

The paper describes a series of field tests and numerical analyses that are aimed at establishing the link between the stifhess measured using a dilatometer in sand and the in situ (undisturbed) stifhess. The field experiments showed that the dilatometer modulus was typically about three times higher than in situ stiffness. The same ratio of three was also deduced fiom a simplified numerical approach, suggesting that this approach may be used to deduce improved relationships between the dilatometer modulus and in situ sand stiffness.