For a normally consolidated clay, the results of a Consolidated Undrained triaxial tost are as follows: Chamber confining prossure
(\sigma _(3))=12\psi
Deviator stress at failure
(\sigma _(1)-\sigma _(3))=34\psi
Pore pressure at failure
=4\psi
a. Determine the undrained angle of friction (
\phi _(CU)
): b. Determine the drained angle of friction (
\phi _(CD)
);
\phi _(Cu)=
◻
\phi _(CD)=
◻