A consolidated-undrained triaxial test (axial compression) on a specimen of saturated over- consolidated clay was carried...
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A consolidated-undrained triaxial test (axial compression) on a specimen of saturated over- consolidated clay was carried out under an all-round pressure of 400 kPa. Consolidation took place against a back pressure of 100 kPa. The principal stress difference at failure was (600 +) kPa. From drained tests on identical samples, it is known that q' = 22° and c' = (15+) kPa. (a) How much is the pore water pressure reading at failure in the undrained test? (10 Marks) (b) Plot the TSP, ESP and (T-uo)SP for this CU test on a p-q diagram. (8 Marks) A consolidated-undrained triaxial test (axial compression) on a specimen of saturated over- consolidated clay was carried out under an all-round pressure of 400 kPa. Consolidation took place against a back pressure of 100 kPa. The principal stress difference at failure was (600 +) kPa. From drained tests on identical samples, it is known that q' = 22° and c' = (15+) kPa. (a) How much is the pore water pressure reading at failure in the undrained test? (10 Marks) (b) Plot the TSP, ESP and (T-uo)SP for this CU test on a p-q diagram. (8 Marks)
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a Given Consolidation pressure 3 400 kPa Back pressure u0 100 kPa Principal stress difference at fai... View the full answer
Related Book For
An Introduction to Geotechnical Engineering
ISBN: 978-0132496346
2nd edition
Authors: Robert D. Holtz, William D. Kovacs, Thomas C. Sheahan
Posted Date:
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