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TA6LE 2 (Continued): <br />Shale (Lover clay or claystone) s1lEhtly sandy, contains numerous slickensides (Cli) <br />Confining Pressure.(psi) <br />25:0 <br />50.0* ' <br />100.0 " <br />0.0 <br />Failure Strength (psi) <br />74.7 <br />101.1 <br />186.3 <br />35.2 <br />Failure Strength (psi) 33.96 + 1.494 (Confining Pressure - psi) <br />r~ = 0.994; Syx = 6.278; t ca lc = 17.599 ( ~ 99X) <br />0 = 11.43°' <br />Cohesion = 13.89 psi <br />* Llote: Failed on slickensides <br />• <br />• <br />