Soft Clay with User-Defined J
The formulation for Soft Clay with User-Defined J is the same as the Soft Clay Soil formulation, with the exception of the user-defined J parameter.
The following material properties need to be defined (Matlock, 1970):
- Strain Factor (E50) - strain corresponding to 1/2 the maximum principal stress difference (typical values are provided in the table below)
 - Undrained Shear Strength
 - Stiffness Factor, J
 

p-y curve for Soft Clay
REPRESENTATIVE VALUES OF E50 FOR NORMALLY CONSOLIDATED CLAYS
Consistency of Clay  | Average undrained shear strength (kPa)  | E50  | 
Soft  | <48  | 0.020  | 
Medium  | 48-96  | 0.010  | 
Stiff  | 96-192  | 0.005  | 
For more information, see the Lateral Analysis Theory Manual.