Question: A specimen of sand failed when (1 - 3) was 750 kPa. If the hydrostatic consolidation stress was 250 kPa, compute the angle of shearing

A specimen of sand failed when (σ1 - σ3) was 750 kPa. If the hydrostatic consolidation stress was 250 kPa, compute the angle of shearing resistance of the sand. What else can you say about the sand?

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