A sample of soil failed a triaxial test under a deviator stress of 200 kN/m2 when the confining pressure was 100 kN/m2. If, for the sample, the confining pressure had been 200 kN/m2, what would have been the deviator stress at failure?
(Assume Φ = 0.)
1
200 kN/m2
2
100 kN/m2
3
400 kN/m2
4
500 kN/m2