In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly
Consider the following statements : A good soil for making bricks should contain 1. about 30% alumina 2. about 10% lime nodules 3. a small quantity of iron oxides 4. about 15% magnesia. Of these statements :
In the phase diagrams given, the change due to initial state changing into final state is shown due to consolidation. Depth of soil layer undergoing consolidation is H ; e0 is initial void ratio; ef is final void ratio ; Δe is change in void ratio. Indicate which of the following expressions gives settlement of the layer :