Answer Happy

Problem 3 4 pts Consider the following triaxial tests conducted on the same normally consolidated clay: Test A: c=400 kPa uo-300 kPa sheared drained increasing the axial stress with chamber pressure constant Test B: Gc=300 kPa uo-200 kPa sheared undrained increasing the axial stress with chamber pressure constant Test C: Gc-300 kPa uo-200 kPa sheared drained increasing the axial stress with chamber pressure constant Test D: Gc-300 kPa uo-200 kPa sheared undrained decreasing the chamber pressure while keeping the axial stress constant a) Prepare a clean and tidy sketch of the effective stress and total stress Mohr circles at failure for the four tests. Place all on the same graph and use different colors to identify the different tests. If drawing by hand use a compass. Note that you are not provided with sufficient data (e.g. friction angle) to perform calculations. b) Rank the 4 tests in terms of 01-03 at failure (use 1 for greatest) - clearly indicate ties TEST A TEST B TEST C TEST D c) Rank the tests in terms of ₁ at failure (use 1 for greatest) - clearly indicate ties TEST A TEST B TEST C TEST D d) Rank the tests in terms of the friction angle at failure (use 1 for greatest) - clearly indicate ties TEST A TEST B TEST C TEST D e) In which test, between TESTS B and D, is a higher excess pore pressure developed at failure?