Problem 2 Assume a clay liner with the following properties: thickness is 0.9 m, hydraulic conductivity of the liner is 1 x 107 cm/sec, diffusion coefficient is 5 x 106 cm²/sec, and porosity of 0.45. The leachate head on the liner is 30 cm o o For R = 1, 2, 4 Determine the solute concentration ratio (C/Co) at: 0.6 m at day 10, 100, 200, 300, 400. (Make plots) W R=1, 2, 4, Determine the concentration ratio at the bottom of the liner after: 200 days

Problem 2 Assume a clay liner with the following properties: thickness is 0.9 m, hydraulic conductivity of the liner is 1 x 107 cm/sec, diffusion coefficient is 5 x 106 cm²/sec, and porosity of 0.45. The leachate head on the liner is 30 cm o o For R = 1, 2, 4 Determine the solute concentration ratio (C/Co) at: 0.6 m at day 10, 100, 200, 300, 400. (Make plots) W R=1, 2, 4, Determine the concentration ratio at the bottom of the liner after: 200 days

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.11P

See similar textbooks

Similar questions

Ex.6: Drilling mud with 16 ppg density. The volume percentage of solids in it is (32%). Calculate the percentage of each on in the mud.
• Q-3. Settling characteristics of a conceritrated suspension C = 3000 mg/t were deterrmined in a laboratory study. The suspension was settled in a colurmn 100-centimeters high, aind thé height of the interface h, was recorded with tirme Time, minutes 100 79 60 10 15 38 20 25 23 15 30 12 35 40 50 7.5 Calculate the area required to achieve clarification and to yield a thickeried sludge concentration of 25,000 mg/f- for an inıfluent flow rate of 5 mgd.
Problem 4. A sample of sand is tested in a constant head permeameter. The sample diameter is 50 mm and its length is 120 mm. Under an applied head of 60 cm, 113 cm³ flows through the sample in 5 minutes. The Mof the sample is 385 grams. Calculate: a. the Darcy coefficient of permeability (k) b. the discharge velocity (v) c. the seepage velocity (v₁)
Show calculation on how to determine the average coefficient of permeability of the sand sample at 20°C. Also show calculations on how to determine the discharge the K1 and Average K1
Results from a liquid limit tests are follows: Plastic Limit = 13.4% ; w= 32% Moisture content Number of blows, N (%) 14 38.4 16 36.5 20 33.1 28 27.0 1) Determine the liquid limit. 2) Determine the plasticity index. 3) Determine the liquidity index.
1. Determine the effective size (d10, in mm) and the uniformity coefficient (UC) for the sand filter media characterized by the sieve analysis results presented in the following table. Include a plot of % Weight passing versus media size in your analysis. Determine alum concentration in mg/L. Sieve Number (mm size opening) 14 (1.41) 16 (1.19) 18 (1.00) 20 (0.84) 25 (0.71) 30 (0.59) 35 (0.50) 40 (0.42) 45 (0.35) 50 (0.297) % Weight Passing 100 100 94 83 57 30 1
Estimate particle size of ilmenite (sg 2x sand =5.4) and anthracite (s.g. 2/3 of sand = 1.8) which have settling velocity of silica sand 0.80 mm in diameter (s.g. 2.7).
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
Assume a clay liner witht the following properties and conditions:thickness, L = 0.6m, seepage velocity across clay liner, vs = 3.0 x 10-7cm/s, and the effective diffusion coefficient of clay liner, D=6 x 10-10 m2/s = 6 x 10-6cm2/s. (a) Determine the solute relative concentration at z=1.0m, 0.2m, 0.3m, 0.4m and 0.6m at t=365 days (b) Determine the solute relative concentration at the base of the liner at t=2 years, 5 years, 10 years, 15 years, 20 years and 50 years
A water filtration unit is made of uniform-size sand particles of 0.4 mm diameter with shape factor of 0.84 and specific gravity of 2,55. The depth of the filter bed is 0.70 m and the porosity is 0.35. The filter bed is to be expanded to a porosity of 0.65 by hydraulic backwash. If the terminal settling velocity of sand particles during during backwash is 4.5 cm/s, the required backwash velocity is
A sample of sand, 5 cm in diameter and 15 cm long, was prepared at a porosity of 60% in a constant-head apparatus. The total head was kept constant at 30 cm and the amount of water collected in 5 seconds was 40 cm^3. The test temperature was 20 deg C. Calculate the hydraulic conductivity. a. 6.7 x 10^-1 b. 3.47 x 10^-2 c. 5.0 x 10^-2 d. 2.0 x 10^-1
A limestone core sample is saturated 100% with water. Calculate the absolute permeability of the core sample if the water is flowing at 4.15 cubic centimetres per second. The length of the core sample is 13.61 centimetres and its diameters if 7.13 centimetres. The pressure differential across the core sample is 25 atmospheric pressure and the water viscosity is 1.1 centipoises. Explain a method of how the permeability of this reservoir can be improved.