According to Rankine, the soil in the profile below could be in either passive or active state. The wall is 2.5m thick, unit weight of concrete is 25kN/m3. 20m 3.1. 3.2. 3.3. 100kPa p' = 30 Ybulk = 18.5kN/m p' = 38 Ysat = 20.7kN/m c' = 18kPa p' = 22 Ynat = 20kN/m Water table 7m Draw the distribution of all the horizontal stresses in a passive state. Draw the distribution of all the horizontal stresses in an active state. (7) (7) Determine the factor of safety against overturning at the toe of the wall for the passive state. (6)