Extracted text: 4. Figure Q4 shows a soil profile loaded with a uniformly distributed load, Ao=50kPa. The water table is located 2.5m below ground level and the soil above can be considered to be completely dry. The unit weight of the soil in each layer is given in the figure. Assume a unit weight for water, ywater=10KN/m. Results from an oedometer test carried out on a clay sample provide the following consolidation parameters: Preconsolidation stress, o'p=125kPa Recompression index, C,=-0.06 Compression index, Cc=-0.36 Initial void ratio, eo=0.9 Determine the consolidation settlement at the middle of e clay layer Aa'=50kPa dry sand Yary=16.5kN/m 2.5m saturated sand Ysat =18.8kN/m 4.5m saturated clay yat 19.2kN/m' e,=0.9 o =125kPa 5.0m Figure Q4