Question 18 A consolidated undrained triaxial test is conducted on a sand specimen, the confining (consolidation) pressure is O3 = 200 kPa, the deviator stress at failure, (01 - 03)f =300kPa, the induced excess pore pressure at failure,Uf=80 kPa. Calculate the friction angle in term of total stress (Unit: Degrees) O 21.2 O 25.4 34.5 16.8

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A: As math type is not available, providing hand written solution

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A: Given and required:

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