1. A soil profile is shown in Figure 1. Assuming the water table is located at the surface and the profile is undisturbed. Show the variation of total vertical and horizontal stresses with the depth to a total depth of 12m. Assume there is a surcharge of 6kN/m2 and Groundwater is 5m below the surface. 5m Sandy clay c=25KN/m², =10°, y=18KN/m³ 7.5m Silt c=10kN/m²?, =15°, y=20KN/m³ Sand =35°, y=19KN/m³ Figure 1

A seepage flow condition is shown in the figure. The saturated unit weight of the soil t = 18kN/m³. Using unit weight of water, %%=9.81 kN/m³, the effective vertical stress (expressed in kN/m²) on plane X-X is Soil 7 = 18 kN/m² 3m Im 5m Im 2m

A layered soil deposit is of dimension 3m x 2m x 3m. There are three different soils, each of 1 m thick as shown. The coefficient of permeability of these soil layered are shown in figure. The water is flowing in the z-direction under the head loss of 5.15 m. The quantity of flow (in m³/hr) would be 1m 1 m 1m 2m k₂ = 5 x 10 m/s k₂=2.5 x 10 m/s k₂ = 1.25 x 10³ m/s 3 m

Figure Q1(c) shows the soil profile with groundwater table is 6 m from thesurface impermeable layer. Calculate the total stress, pore water pressureand effectives tress at points D.