The undrained shear strength of an isotropically consolidated, fi ne-grained soil in a standard triaxial CU test is 50 kPa. The cell pressure used to consolidate the soil is
(a) Determine the normalized undrained shear strength.
(b) Estimate the undrained shear strength of the same soil if Ro = 6. Assume the pre consolidation stress is the same.
(c) Estimate the undrained shear strength if a DSS test was conducted.