A layered soil is depicted in the following figure. Make reasonable assumptions on the hydraulic conductivity on each layer and estimate the equivalent permeability, keq, for direction of water flow #1 and #2. Direction of water flow #1 H, = 3.5 m, dense gravel %3D H, = 7.2 m, soft clay %3D Direction of water flow #2 H, = 6.8 m, medium dense sand H = 2.9 m, dense sand %3D 4

P 2: A soil profile is shown in Figure below. Note the zone of capillary in the sand layer overlying clay. In the zone the average degree of saturation and the moisture content are 60% and 17.6kN/m³, respectively. Calculate and plot the variation of o, u and o' with depth at points A, B, C and D. Sand 3m Y = 16.5kN/m³ Zone of capillary rise y = 17.6kN/m² S,= 60% 1m Sand Ysat = 18.9kN/m³ Sáturated clay 3m Rock ANSWERS: o' At A =0, at B before capillary =49.5kPa, at B after capillary = 55.4kPa, at C = 67.1kPa , at D=94.4kPa

Exercise 1 A soil profile is shown in Figure Calculate the values of o, u, and o' at points A, B, C, and D. Plot the variation of o, u, and o' with depth. Dry sand roundwater table Thickness (ft) Unit weight (Ib/ft) Layer no. Laver IE H = 5 H2 = 6 H3 = 8 Ya = 112 Ysat = 120 Ysat = 125 Sand I II III TTE Figure 1

2: For the soil profile shown in figure below, determine total and effective vertical stresses and pore water pressure at points A, B, C, and D. 2m 3m 1m 1m 3m د اما ما B Gs=2.7 D Gs=2.66 e=0.72 w=9% - sand 10 silt e=0.66 S-60% S-100% S=100% clay Gs=2.72 e=0.6

Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.39 m². d1=d2=d3=0.52 m. Head difference is 0.93 m. Inflow Outflow Soil A Soil B Soil C d2 d3 Coefficient of Permeability for Each Soil: Soil A Kax 2.92 x 10-2 cm/s Soil A Kaz 1.36 x 10-3 cm/s Soil B Kbx 1.67 x 10.2 cm/s Soil B Kbz 2.92 x 10-3 cm/s Soil CKcx 3.28 x 102 cm/s Soil C Kcz 3.49 x 10-3 cm/s Compute the coefficient of permeability of the sand filler in cm/s. Use 4 decimal places

Answer in three decimal places please

Please answer with a good epxlantion and step by step solution

Please solve witha good explantion and step by step solution

Caculate the total, neutral and effective stress (kPa) at the base of each soil layer listed below. Assume the water table rest 4 m below ground surface and that there is a capillary rise of 1 m above the water table. Provide your answers in kPa to 1 decimal place. Use 9.81 kN/m3 as the unit weight of water.   Total Neutral Effective Silty Sand: 5m thick, γt = 17.5 kN/m3, γsat = 18.5 kN/m3,  Blank 1 Blank 2 Blank 3 Clay: 4m thick, γt = 16.5 kN/m3, γsat = 17.8 kN/m3,  Blank 4 Blank 5 Blank 6 Sand: 6m thick, γt = 17.3 kN/m3, γsat = 18.1 kN/m3,  Blank 7 Blank 8 Blank 9

5. A clay layer having a thickness of 10.83 m. has an initial void ratio of 1.14. It is compressed and the void ratio changed to 0.81. Determine the reduction in thickness, in mm., of the clay layer. Round off to three decimal places. Input the numerical value only.