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
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(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.