1. Following are the results of two consolidated-drained triaxial tests on a clay: Test I: s3 5 140 kN/m2;s1(failure) 5 368 kN/m2 Test II: s3 5 280 kN/m2; s1(failure) 5 701 kN/m2 Determine the shear strength parameters; that is, c9 andf9.
2. A consolidated-undrained triaxial test was conducted on a saturated, normally con- solidated clay. The test results are s3 5 13 lb/in2 s1(failure) 5 32 lb/in2 Pore pressure at failure 5 u 5 5.5 lb/in2 Determine c, f, c9, and f9.