Influence of the Fractal Distribution of Particle Size on the Critical State Characteristics of Calcareous Sand

To study the influence of fractal distribution particle size on critical state characteristics calcareous sand, a type sand from certain reef South China Sea was used in this study. For comparison, standard quartz also used. A series drained shear tests two sands were then conducted to investigate their characteristics. It demonstrated that dimension is suitable for characterizing (PSD) with different fine content. The equation proposed by Li and Wang (1998) fitting line sand. In plane deviatoric stress versus effective confining pressure (q–p? plane) void ratio (p?/pa)?, lines are always above those dimensions q–p? unique. However, e–(p?/pa)? plane, appear rotate anticlockwise as increases. addition, there an “intersection” plane. Considering size, expression proposed. related constitutive model revised, where complete set parameters modeling provided.