Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1=d2=d3=0.52 m. Head difference is 0.92 m. Inflow Outflow Soil A Soil B Soil C -d2 Coefficient of Permeability for Each Soil: Soil A Kax 2.99 x 10-2 cm/s Soil A Kaz 1.44 x 10-3 cm/s Soil B Kbx 1.63 x 10-² cm/s Soil B Kbz 2.22 x 10-³ cm/s Soil C Kcx|3.15 x 102 cm/s Soil C Kcz 3.17 x 10-3 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places. D

2. Refer to figure 8.16. Calculate o, u, o'at A, B, C, and D for the following cases and plot the variations with depth. (Note: e = void ratio, w =moisture content, Gg = specific gravity of soil solids, Ya = dry unit weight, and ysat = saturated unit weight.) н, 3 1.5 т Ya = 17.6 kN/m³ H2 = 1.83 m Ysat = 18.87 kN /m³ H3 = 2.44 m 19.65 kN /m3 Ysat =

void ratio and the specific gravity of soil. 2. In a fully saturated soil, prove that Wsat = Yw Ya Ys

What are the dry unit weight and the saturated unit weight (in kN/m3) for a soil sample has the following properties: e = 0.68 Dr = 47% Gs = 2.65 O 1. 15.47 kN/m3 and 19.45 kN/m3 O 2.20.0 kN/m3 and 22.50 kN/m3 O 3. 10.47 kN/m3 and 18.45 kN/m3 O 4. 17.47 kN/m3 and 17.47 kN/m3

Situation 2. A granular soil located in a borrow pit is found to have an in place dry density of 1895 kg/m^3. In the laboratory, values of dry maximum density and minimum density are determined as 2100 kg/m^3 and 1440 kg/m^3, respectively. a. Compute the relative density of the soil in the borrow pit. b. Compute the void ratio of the soil in the natural condition if the maximum and minimum densities indicate void ratio ratios of 0.28 at the max density and 0.92 at minimum density. c. Compute the specific gravity of this soil.

A fully saturated soil sample has a volume of 28 cc. The sample was dried in oven and the weight of the dry soil pat was found to be 48.76 g. Given G= 2.68. Determine volume of solids in cm3. a. 18.23 b. 9.77 c. 20 d. 53.6

Situation 1- The void space in a soil sample consists of 78% air. The dry unit weight is ya = 14.5 kN/m³ and G₁ = 2.72. Gs Determine the following: 13. The void ratio. A. 0.89 C. 0.72 B. 0.84 D. 0.63 14. The water content. A. 24.1% C. 6.8% B. 22% D. 12.5% 15. The submerged unit weight. C. 9.65 kN/m³ A. 10.12 kN/m³ B. 8.57 kN/m³ D. 9.17 kN/m³

Classify the following soil according to the Unified System:2% of the material is retained on the No.4 mesh.90% of the material passes the No.4 mesh and is retained in the No.200 mesh8% of the material passes the No.200 mesh.From the granulometric curve: Cu = 8; Cc = 2In the fine fraction: LL = 45%; LP = 31%UCSC

The layer of soil shown has the corresponding coef. of permeability. It is required to compute the equivalent coef. of permeability in a vertical direction in cm/sec. Soil layer thickness Coef. of permeability A 3 m 0.010000 cm/s B 4 m 0.032000 cm/s 6 m 0.000041 cm/s O 8.858 7.678 O 9.889 4.556 None of these

For moist soil Volume = 0.25 ft3 %3D Weight = 30 lb %3D Weight of dry soil = 26.1 lb Gs = 2.63 Find the porosity 0.149 0.69 0.36 0.57