Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.38 m². d1-d2=d3=0.58 m. Head difference is 0.94 m. Inflow Outflow 7 Soil A Soil B Soil C d1 -d2- d3- Coefficient of Permeability for Each Soil: Soil A Kax 2.43 x 10-2 cm/s Soil A Kaz 1.55 x 10-3 cm/s Soil B Kbx 1.55 x 10-2 cm/s Soil B Kbz 2.76 x 10-3 cm/s Soil ClKcx|3.26 x 102 cm/s Soil C Kcz 3.33 x 103 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places.

Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.38 m². d1-d2=d3=0.58 m. Head difference is 0.94 m. Inflow Outflow 7 Soil A Soil B Soil C d1 -d2- d3- Coefficient of Permeability for Each Soil: Soil A Kax 2.43 x 10-2 cm/s Soil A Kaz 1.55 x 10-3 cm/s Soil B Kbx 1.55 x 10-2 cm/s Soil B Kbz 2.76 x 10-3 cm/s Soil ClKcx|3.26 x 102 cm/s Soil C Kcz 3.33 x 103 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.8P

See similar textbooks

Similar questions

The section size of a water pipe is (100cm Χ 100cm), three types of soils A, B, and C are placed in the pipe, and a fixed amount of water is injected into the top left tap to keep the water head difference between the left and right ends of the pipe 60cm. The three soil permeability coefficients are k_A = 0.05 cm/sec , K_B = 0.1 cm/sec, k_C = 0.001 cm/sec, please calculate the following values:(1) The fixed amount of water injected into the faucet on the upper left (cm3/hr)(2) What is the total water head consumed by each of the three soils of A, B, and C (cm)(3) The overall volumetric seepage force of water flowing through the three soils (kN/m3)
H2 = 0.3’ h = 1.25’ H1 = 0.2’ d = 1.5” H = 0.5’ D = 4” Ksand = 0.000075 ft/min Ksilt = 0.0038 ft/min Determine: Determine the total flow of water q. Find the equivalent permeability for the soil.
The SQUARE base permeameter (seen from above), has three soil layers arranged vertically as shown in the image. L is: 70cm, the difference of head h is: 105 cm. The coefficient of permeability of soil 1 K1 is 0.065 cm/sec, soil 2 K2 is 0.0030 cm/sec and soil 3 K3 is the 0.0095 Calculate the amount of water collected in a time of 10 minutes.
For a soil, given e= 0.75, w= 22%, Gs= 2.66, calculate the moist density of soil in kg/m3. a.1854 b.1516 c.1860 d.1520 With FBD if necessary
Situation 1 – Refer to the picture. 1. Assume 3K1=K2=1.5K3=2K4 K1=3.5x10-2 (cm/s) Calculate the equivalent coefficient of permeability. 2. Assume 3K1=K2=1.5K3=2K4 K1=3.5x10-2 (cm/s) Calculate the rate of seepage 3. Assume 3K1=K2=1.5K3=2K4 K1=3.5x10-2 (cm/s) Calculate the height of water above C if piezometer was placed at that point
A layer soil has the following data: H1=3m K1=2x10^-2 cm/sH2=4m K2=3.2x10^-2 cm/sH3=6m K3=4.1x10^-2 cm/s a) Compute the equivalent coefficient of permeability in the vertical directionb) Compute the velocity of flow if h =4 m.
The hydraulic conductivities of the soils in the direction of flow through them are as follows: Soil A =0.01 cm/s Soil B=0.003 cm/s Soil C=0.00049 cm/s a) Find hA and hB (Ans. 287.86 mm and 247.44, respectively)
Figure below shows layers of soil in a tube that is 100mm x 100mm incross section. Water is supplied at a constant head difference of 400 mm across thesample. The hydraulic conductivities of the soils in the direction of flow through them areas follows. Soil k (cm/sec) Porosity, n (%) A 1x10-2 25 B 3x10-3 32 C 4.9x10-4 22 a. Calculate the equivalent k in cm/sec.b. Calculate the rate of water supply in cm^3/hrc. Calculate the seepage velocity through soil C in m/sec.
Q- If a soil has a voids ratio of 0.68 and water percolating through it has a discharge velocity of 1.35*10-2cm/s. Calculate its seepage velocity.
The hydraulic conductivity of a sand at a void ratio of 0.62 is0.03 cm/sec. Estimate its hydraulic conductivity at a void ratioof 0.48.
Determine the coefficient of permeability in mm/s from the following data:Length of sand sample = 25 cm;Area of cross section of the sample = 30 cm2; Head of water = 40 cm; Discharge = 200 ml in 110 s a.0.3788 b.0.750 c.0.106 d.1.23 x 10^(-2)
a. For each of the cases, I, II and III, determine the pressure elevation and total heads at points A, B and C. Use the given datum in each case. b. If the coefficient of permeability of the soil in each case is 2 cm/sec, and the cross sectional area is 10 cm2 calculate the water flow rate through the soil. Assume head loss is only through the soil sample.