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interxlocking

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## Homework Statement

Stage 1: A CD triaxial test is performed on saturated clay. The cell pressure is increased from 250 to 300KPa with a pore water pressure of 200KPa. Observed change in void ratio is 0.0832 from an initial void ratio of 0.7406.

Stage 2: Deviatoric stage under drained conditions of failure, where the final void ratio is 0.5616.

Angle of shear resistance of the clay is 30 degrees.

Calculate the critical state parameters M and [itex]\lambda[/itex] and the stresses p, p' and q at failure.

## Homework Equations

## The Attempt at a Solution

I don't want anyone to actually do the problem for me I just need a push in the right direction. I'm not sure how to find the correction values of [itex]\sigma[/itex]

_{1}and [itex]\sigma[/itex]

_{3}

Any help is appreciated! Thanks!