Question 4. Consider the liner system at the base and on the side slope of a landfill in figure below. State the function of each of the components. Give the common important / typical requirements or properties such as minimum thickness, permeability, etc. for each. Drainage Layer Geonet Compacted Clay Waste °0.0%% XXXX Subsoil geotextile geomembrane geomembrane

Question 4. Consider the liner system at the base and on the side slope of a landfill in figure below. State the function of each of the components. Give the common important / typical requirements or properties such as minimum thickness, permeability, etc. for each. Drainage Layer Geonet Compacted Clay Waste °0.0%% XXXX Subsoil geotextile geomembrane geomembrane

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.14P: A hydrometer test has the following result: Gs = 2.65, temperature of water = 26 C, and L = 10.4 cm...

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Choose the correct answer Which of the following can be used to determine the transport velocity of landfill leachate in subsurface? A.Darcy’s law; B. Henry’s law; C. Mass balance; D. Langmuir model Which of the following descriptions is NOT correct at 1 atm and 0oC? 200 g CO2, 200 g CH4, and 200 g N2O gases have the same volumes; 200 moles CO2, 200 moles CH4, and 200 moles N2O gases have the same volumes; 1 mole CO2 gas has a volume of 22.4 L; CO2 has a lower global warming potential than CH4
e) According to laboratory_testing results, the hydraulic conductivity (coefficient of permeability of < 1X10' cm/sec of a soil with up to 50 to 60% gravel (i.e. clayey silty gravel, GC-GM). Do you think this soil can be used as a landfill liner? Why and Why not?
A hydrometer test has the following result: Gs = 2.65, temperature of water = 26 C, and L = 10.4 cm at 45 minutes after the start of sedimentation (see Figure 2.25). What is the diameter D of the smallest-size particles that have settled beyond the zone of measurement at that time (that is, t = 45 min)? Figure 2.25 ASTM 152H type of hydrometer placed inside the sedimentation cylinder (Courtesy of Khaled Sobhan, Florida Atlantic University, Boca Raton, Florida)
Determine overall removal obtained for a sedimentation tank having following data: 32.6 m/day Surface overall rate 1 G 1.2 dyanic viscosity 1.027 centipoise Pw 0.997 g/cm³ Particle size 0.1 mm 0.08. m 0.07 mm 0.06 0.04 0.02 0.01 Weight fraction 10% 15% 40% 70% 93% 99% 100% greater in size Use Stoke's law to find out the settling velocity.
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The possible removal mechanisms are as follows except for A Physical filtration B Inertial impact Sedimentation D Mechanical straining
An MSW landfill has inactive cells covered with an intermediate cover of 1 m of sandy-loam soil. The soil is washed before use, thus it is at 100% field capacity when applied. The local 10-year average weather data is as follows. Month Precipitation ET in in Jan 7.8 3.1 Feb 7.1 3.4 Mar 6.0 4.4 Apr 3.3 5.1 May 1.1 6.3 Jun 1.1 7.0 Jul 1.1 7.4 Aug 1.5 6.9 Sep 4.0 5.8 Oct 5.0 4.8 Nov 5.5 3.6 Dec 7.0 3.0 Determine percolation (PER) through the intermediate cover in a 12-month starting from the month of July.
11 er For sieves with openings smaller than 4.75 mm (No. 4), the quantity retained on any sieve at the completion of the sieving operation shall not exceed sieving surface area. he (kg/m^2) of
up to 120221 (Compatibility Mode] - Word References Mailings Review View Help Nitro Pro V Tell me what you want to do A A Aa E E-E EE T T 2 T AaBbCcl AaBbCcI AABBCCI A A、ッ、A 前,, Emphasis T Heading 1 I Normal Paragraph Styles 1. Q. The following results were obtained from a CBR test on a compacted subgrade soil. Calculate the CBR value for the soil. Do you recommend to use it as subbase? Illustrate your answer? Penetration (mm) Load (KN) 0.625 0.15 1.25 0.18 1.875 0.40 2.5 0.73 3.75 1.32 1.80 7.5 2.34 10 2.53 12.5 2.91 Standard Loads: 2.5 mm .... .13.36 KN 5.0 mm 19.96 KN tes) lenovo
a) With the aid of relevant equations explain what is meant by "settling ratio" b) Explain the difference between free settling and hindered settling c) Why is sizing helpful for gravity concentrator feed to have a narrow particle size distribution? d) The shaking table is frequently used for final concentration of gold. Describe this unit showing how operating variables can be adjusted to optimise its performance
The back fill material for a vibroflotation project has the following grain sizes. D10 0.11 mm Calculate the sorting coefficient. 2.798 Select the correct response: 1.633 D20 3.546 0.20 mm 1.581 D50 1.3 mm D25 0.60 mm D75 1.60 mm
1. Fineness modulus of the aggregate Weight Retained Individual Cumulative Percent Sieve (g) Percent Percent Passing 4.75mm 31.5 2.36mm 67.6 1.18mm 96.5 600um 111.1 300um 60.5 150um 115.6 75um 17.5 pan 31.5 O a. 2.96 O b. 2.76 O c. 2.54 O d. 2.34