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MindTap Engineering for Das/Sobhan's Principles of Geotechnical Engineering, SI Edition, 9th Edition, [Instant Access], 1 term (6 months)
9th Edition
ISBN: 9781305971226
Author: Braja M. Das; Khaled Sobhan
Publisher: Cengage Learning US
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Question
Chapter 3, Problem 3.18P
(a)
To determine
Calculate the void ratio of soil.
(b)
To determine
Calculate the specific gravity of soil solids.
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Soil Mechanics
(1) For a soil, the following are given: Specific gravity = 2.67, moist unit weight = 17.6 kN/m³, water
unit weight = 9.81 kN/m3 and moisture content = 12 %. Determine
(a) Dry unit weight,
(b) Void ratio,
(c) Porosity,
(d) Degree of saturation
13 For a given soil, Pa = 1800 kg/m³ and n = 0.3. Determine: a. Void ratio
b. Specific gravity of soil solids
Given the following properties of a soil:
Porosity, n = 42.1%
Specific gravity of soil solids, Gs = 2.71
a.) Calculate the void ratio of the soil.
b.) Calculate the saturated unit weight of the soil.
c.) Calculate the effective unit weight of the soil.
Chapter 3 Solutions
MindTap Engineering for Das/Sobhan's Principles of Geotechnical Engineering, SI Edition, 9th Edition, [Instant Access], 1 term (6 months)
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - For a given sandy soil, emax = 0.75 and emin =...Ch. 3 - For a given sandy soil, the maximum and minimum...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.1CTPCh. 3 - Prob. 3.2CTPCh. 3 - Prob. 3.3CTP
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- A saturated soil has the following characteristics: Initial mass = 40.91 grams Final mass = 28.79 grams Initial Volume = 23 cm3 Final Volume = 15 cm3 Determine the specific gravity of soil solids. Round off to two decimal places.arrow_forwardCalculate the bulk density (g/cc) of a soil using the following values; a. Weight of core= 150 g b. Weight of core + fresh soil= 230 g c. Moisture content of the soil= 12% d. Height of the core= 9.5 cm e. Diameter of the core= 4 cm * A. 0.65 B. 0.60 C. 0.55 D. 0.50arrow_forwardQI/ For the given dry sandy soil specimen: G=2.68, weight of dry soil = 100 gr, dry density= 1.6g/cm', emax = 0.7, emin = 0.48. Find the following 1. Volume of soil solid 2. Volume of void 3. Void ratio 4. Porosity 5. Air content 6. The relative density 7. What is the description of this sandy soil depending on the relative density? 8. What is the volume of water which must be added to this dry sample to reach the fully saturated state? What will be the total density ? 9. What are the maximum and minimum dry densities?arrow_forward
- 4. Determine the PI and LI for a soil with the following parameters. Would you expect this soil to be soft or stiff? Will it be brittle or plastic? W₁ = LL = PL = 55 59 31 5. Will the above soil be soft or stiff? How do you know?arrow_forward1. The saturated unit weight of a soil is 13 kN /m° at a moisture content of 26 %. The unit weight of water is Y, = 9.81 kN /m³. a. Determine the dry unit weight. (Enter your answer to three significant figures.) Ya kN/m³ b. Determine the specific gravity of soil solids, G,. (Enter your answer to three significant figures.)arrow_forward435 grams of moist granular soil was tested in the laboratory and was found to have a specific gravity of soil solids of 2.65. If the air void ratio is approximated to be 16% and the volume of the solids is 116 cubic centimeters. Determine the following: a. Void ratio. b. Bulk density, g/cc. c. Amount of water to be added to attain saturated state, g. Given: Total Weight of Soil, W = 435 g Specific Gravity of Soil Solids, Gs = 2.65 Air void ration, na = 16% Volume of soil solids, Vs = 116 ccarrow_forward
- Question 13 A saturated soil has the following characteristics Initial mass = 41.75 grams Final mass = 28 4 grams Initial Volume = 23 cm3 Final Volume = 15 cm3 Determine the specific gravity of soil solids. Round off to two decimal places. SUSarrow_forward435 grams of moist granular soil was tested in the laboratory and was found to have a specific gravity of soil solids of 2.65. If the air void ratio is 16% and the volume of the solids is 116 cubic centimeters. Determine the: a. Void ratio. b. Bulk density, g/cc. c. Amount of water to be added to attain saturated state, g.arrow_forward-9. A soil sample has a natural water content of 22.5% and it is known to have a specific gravity of 2.6. In order to determine the moist density of soil, a portion of soil weighing 224g is put in a 500 cm³ container. It is filled 382 cm³ of water to fill the container. a) Compute the void ratio of the soil (A. 0.82 B 0.68 D. 1.04 C. 0.89 b) C) Compute the porosity of the soil A B. 47.09% D. 50.98% 45.05% 40.48% Compute the degree of saturation of the soil (A. 71.34% B. 65.73% C. 86.03% D. 56.25%arrow_forward
- 10. The dry density of the soil sample, p d, is 1960 kg/m³, and the dry density of the soil solids, p s, is 2700 kg/m³. If emax = 0.69 and emin =0.44: a. what is the dry unit weight in kN/m³ if the water content is 11%? b. what is the void ratio of the soil sample? c. what is the relative density of the soil sample?arrow_forwardProblem 2. A saturated clay soil has a moisture content of 40%. Given that G,= 2.73, determine the following in metric system: a. Porosity b. Dry unit weightarrow_forwardCompute the total unit weight, dry unit weight, water content, and saturated unit weight of the soil sample below. Volume Weight Air Va Vv Vw Wa watef ww V Vs solids Ws Given: e = 0.8 s = 0.9 Gs = 2.68arrow_forward
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