(Solved): The cross section of a proposed concrete gravity retaining wall is shown above. The unit weight of ...

The cross section of a proposed concrete gravity retaining wall is shown above. The unit weight of the concrete is \( 23.5 \mathrm{kN} / \mathrm{m}^{3} \). The wall is supporting a fully drained non-cohesive soil with a friction angle of \( 36^{\circ} \) and unit weight of \( 19.5 \mathrm{kN} / \mathrm{m}^{3} \). The friction angle at the soil-wall interface at the base is \( 24^{\circ} \). (a) Draw the earth pressure distribution acting on the wall considering both active and passive earth pressures (3 Marks) (b) Calculate the Factor of Safety against sliding ignoring the passive resistance of the fill in front of the wall (5 Marks) (c) Calculate the Factor of Safety against overturning ignoring the passive resistance of the fill in front of the wall (5 Marks)