The D10 size of a soil is 0.01 mm. Assuming (1/5) D10 as the pore size, estimate the height of capillary rise assuming surface tension of water as 75 dynes/cm.
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- 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 placesWater flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.25 m². d1=d2-d3=0.58 m. Head difference is 0.93 m. 7 Inflow Outflow Soil A Soil B Soil C d3 Coefficient of Permeability for Each Soil: Soil A Kax 2.71 x 10-² cm/s Soil A Kaz 1.58 x 10-³ cm/s Soil B Kbx 1.40 x 10-² cm/s Soil B Kbz 2.56 x 10-³ cm/s Soil C Kcx 3.23 x 102 cm/s Soil C Kcz 3.19 x 10-³ cm/s Compute the interstitial velocity if the soil has a void ratio of 0.76 in meters per minute.. Use 4 decimal places.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=0.58 m. Head difference is 0.84 m. Inflow h Outflow Soil A Soil B Soll C d2 d3- Coefficient of Permeability for Each Soil: Soil A Kax 2.15 x 10-² cm/s Soil A Kaz 1.51 x 10-3 cm/s Soil B Kbx 1.67 x 10.2 cm/s Soil B Kbz 2.86 x 10-³ cm/s Soil C Kcx|3,30 x 102 cm/s Soil C Kcz 3.31 x 10-3 cm/s Compute the interstitial velocity if the soil has a void ratio of 0.77 in meters per minute.. Use 4 decimal places.
- A soil sample has solids with effective (D10) = 0.004 mm. The effective pore diameter is 30% of effective size. The theoretical height of capillary rise of water will be - A 50 m B 25 m C 5 m D 2.5 mA constant-head test was conducted on a sample of soil 15 cm long and 60 cm^2 in cross-sectional area. The quantity of water collected was 50 cm^3 in 20 seconds under a head difference of 24 cm. if the porosity of the sand is 55 % calculate the seepage velocity in cm/s. a. 1.0 x 10^-1 b. 4.3 x 10^-3 c. 3.47 x 10^-2 d. 2.6 x 10^-6A 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
- A soil sample has a unit weight of 1.9 g/cc and w=12%. If Gs of solids is 2.65, determine the volume of water in cm3. a.0.377 b.0.212 c.0.12 d.0.092A canal is cut into a soil with a stratigraphy as shown. Assume that flow takes place horizontally and vertically through the sides of the canal and vertically below the canal. The values of k in each layer is given. a. What is the equivalent permeability in the horizontal direction through the sides of the canal in cm/day? b. What is the equivalent permeability in the horizontal direction through the sides of the canal in cm/day? c. Determine the equivalent permeability in the vertical directions below the bottom of the canal, in cm/day. 1.0 m k = 2.3 x 10* cm/s 1.5 m T. k = 5.2 x 10 cm/s 3.0 m 2.0 m k = 2 x 10 cm/s 1.2 m k- 0.3 x 10 cm/s 3.0 m k = 0.8 x 10° cmn/sWater flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.38 m². d1=d2=d3=0.59 m. Head difference is 0.84 m. Inflow Outflow Soil A Soil B Soil C -d2- Coefficient of Permeability for Each Soil: 2.35 Soil X A 10-2 cm/s 1.75 Soil Kaz X A 10-3 cm/s 1.35 Soil X Kbx B Kax 10-2
- 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 the porosity in percent. A. 9.77 B. 1.745 C. 2.09 D. 34.90The figure shows a granular soil in a tank having a downward seepage. The water level in the tank is held constant by adjusting the supply from the top and the outflow at the bottom. The void ratio of the soil is 0.50 and the specific gravity is 2.7. H,0 0.8 m 1.1 m A 3.6 m 5.4 m B C Il a plezometer is placed at point B, to what height the water will rise above this point?Problem 4. A 1-m³ sample of moist soil weighs 2000 kg. The water content is 10%. Assume is 2.70 Mg/m³. With this information, fill in all blanks in the phase diagram below. V₁ = V₂ Vw Air Water- Soil M₂ Ms M₁ =