Determine the volume of water flowing through the sample shown in the figure per hour. There are 3 different soil layers and each is 200mm in length and diameter is 150mm. A constant head of 470mm is maintained across the soil sample. The porosity for Soil I is 0.5 and the value of k is 5*10^-3 cm/s. The porosity for Soil II is 0.55 and the value of k is 4.2*10^-2 cm/s. The porosity for Soil III is 0.35 and the value of k is 3.69*10^-4 cm/s. The hydraulic conductivities are measured in the direction of the flow. Water supply head

Determine the volume of water flowing through the sample shown in the figure per hour. There are 3 different soil layers and each is 200mm in length and diameter is 150mm. A constant head of 470mm is maintained across the soil sample. The porosity for Soil I is 0.5 and the value of k is 510^-3 cm/s. The porosity for Soil II is 0.55 and the value of k is 4.210^-2 cm/s. The porosity for Soil III is 0.35 and the value of k is 3.69*10^-4 cm/s. The hydraulic conductivities are measured in the direction of the flow. Water supply head

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter12: Subsurface Exploration

Section: Chapter Questions

Problem 12.13P

See similar textbooks

Similar questions

The total volume of a soil specimen is 80,000 mm^3 and has a mass of 152 g. the dry mass of the specimen is 122g, and the density of the soil is 2.65 Mg/m^3. Compute the following index properties: (a) e; (b) n; (c) S; (d) ρt; and (e) ρd. Include phase diagrams.
In a falling head permeameter, tge sample used is 18cm long havibg a cross sectional area of 22cm^2. The sample of soil is mqde of three layers. The thickness of the first layer from the top is 8cm and has a value of k1=4x10^-4 cm/sec, the second layer of thickness 8cm has k2=5.5x10^-4 cm/sec and the bottom later of thickness 4 cm has k3=7x10^-4 cm/sec. Assume that the flow is taking place perpendicular to the layers. The cross sectional area of the stand pipe is 3cm^2. A.Calculate the equivalent coefficient permeability in cm/sec of the soils ib tye direction of the flow Choices: 4.44 x10^-4 cm/s 4.97x10^-4 cm/s 3.24x10^-4 cm/s 3 53x10^-4 cm/s B.Calculate the flow rate in cm^3/hr when the head drops from 25cm to 12cm Choices: 18.20,24.58,28.42,20.65 C.Calculate the time recquired for a drop of head from 25 cm to 12 cm Choices: 58.22,62.91,97.05,60.44
Prob. In a constant head permeability test following results observed - Distance between piezometer tappings = 100 mm Difference of water levels in piezometers = 60 mm Diameter of test sample = 100 mm Quantity of water collected = 350 ml in 270 sec Determine the coefficient of permeability of the soil.
H=?
Correct option
please solve B only. subject: geotechnical Engineering A sample coarse grained soil is 50mm. In diameter and 150mm long was tested in a constant-head apparatus. The soil sample was prepared at a void ratio of 1.5. The total head was kept constant at 300mm and the amount of water is collected in 4 sec. was 50cm^3. The test temperature was 22°Ca.) Compute the temperature correction factor.b.) Compute the corrected coefficient of permeability in cm/sec. c.) Compute the interstitial velocity.
help me find this
I need the answer as soon as possible
2.2. please show the solution and the correct answer
Q3): (A): The result of constant head permeability test for sand sample having a diameter of 100 mm and a length of 200 mm are as follows: Constant head difference= 300 mm, time of collection of water= 3 min, volume of water collected 250 cc. Find the coefficient of permeability for the soil.
Find the value of Cc of the following soil data sample Weight Percentage Cumulative Percentage Sieve Weight retained (gm) percentage retained (C) retained finer S.NO Select one: O a. 10.85 size (gm) N = (100 - C) {W,/ W,} x 100 1 75mm 100 O b. 7.36 63mm 100 O c. 18.34 50mm 100 O d. 2,96 4 37.5mm 454 22.7 22.7 77.30 5 28mm 285 14.25 36.95 63.05 6 20mm 207 10.35 47.30 52.70 7 14mm 318 15.90 63.20 36.80 8 10mm 206 10.30 73.50 26.50 6.3mm 118 5.90 79.40 20.60 10 5.0mm 102 5.10 84.50 15.50 11 3.35mm 64 3.20 87.70 12.30 12 2.0mm 88 4.40 92.10 7.90 13 1.18mm 35 1.75 93.85 6.15 14 600µ 42 2.10 95.15 4.85 15 300µ 33 1.65 97.60 2.40 16 150µ 18 0.90 98.50 1.50 17 75µ 22 1.10 99.6 0.40 18 Pan 8 0.40 100 In the pan we have = 100 W,= 2000 2 -99.6 = 0.4 % of material 2. 3.
ASAP (Soil Mechanics)