naxi saturated soil has the following re Cell pressure (kPa) Deviator stress (kPa) Pore pressure (kPa) 1425 275.5 396 200 119 143 400 600 178 a) Determine the drained angle of internal friction of the soil. b) Determine the cohesion of the soil in drained condition.

a. A vane shear test was conducted in a saturated clay. Theheight and diameter of the rectangular vane were 4 in.and 2 in., respectively. During the test, the maximumtorque applied was 230 lb ? in. Determine the undrainedshear strength of the clay.b. The clay soil described in part (a) has a liquid limit of58 and a plastic limit of 29. What would be the correctedundrained shear strength of the clay for design purposes?Use Bjerrum’s relationship for l [Eq. (3.40a)].  Determine the overconsolidation ratiofor the clay. Use Eqs. (3.42) and (3.45). Use s9o 5 1340 lb/ft2.

Subject: Soil Mechanics