The consolidated undrained dynamic triaxial test of saturated Fujian standard sands is conducted under different conditions, on the basis of which the relationship between ratio of shear/normal stress and ratio of normal/shear strain on two planes (“Mobilized Plane” and “Spatial Mobilized Plane”) is studied in details respectively.

Discussion on computing effective reinforcement depth of soft soil foundation by dynamic compaction based on critical cyclic shear stress ratio;