a. A vane shear test was conducted in a saturated clay. The height and diameter of the rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum torque applied was 230 lb-in. Determine the undrained shear strength of the clay. b. The clay soil described in part (a) has a liquid limit of 58 and a plastic limit of 29. What would be the corrected undrained shear strength of the clay for design purposes? Use Bjerrum's relationship for A [Eq. (3.40a)]. Cu(field) OCR = B σο (3.42) 1 (3.45) 0.08 + 0.0055(PI)

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Refer to Problem 3.17. Determine the overconsolidation ratio for the clay. Use Eqs. (3.42) and (3.45). Use σ'0 = 1340 lb/ft2.

a. A vane shear test was conducted in a saturated clay. The height and diameter of the
rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum
torque applied was 230 lb-in. Determine the undrained shear strength of the clay.
b. The clay soil described in part (a) has a liquid limit of 58 and a plastic limit of
29. What would be the corrected undrained shear strength of the clay for design
purposes? Use Bjerrum's relationship for A [Eq. (3.40a)].
Transcribed Image Text:a. A vane shear test was conducted in a saturated clay. The height and diameter of the rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum torque applied was 230 lb-in. Determine the undrained shear strength of the clay. b. The clay soil described in part (a) has a liquid limit of 58 and a plastic limit of 29. What would be the corrected undrained shear strength of the clay for design purposes? Use Bjerrum's relationship for A [Eq. (3.40a)].
Cu(field)
OCR = B
σο
(3.42)
1
(3.45)
0.08 + 0.0055(PI)
Transcribed Image Text:Cu(field) OCR = B σο (3.42) 1 (3.45) 0.08 + 0.0055(PI)
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