Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Question
Chapter 3, Problem 3.15P
(a)
To determine
Calculate the mass of water to be added per cubic meter of soil.
(b)
To determine
Calculate the mass of water to be added per cubic meter of soil.
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1) The moist unit weight of a soil is 19.2 kN/m3 . Given that Gs = 2.69 and w = 9.8%, determine:
a. Void ratio
b. Dry unit weight
c. Degree of saturation
2) Refer to Problem 1 Determine the weight of water, in kN, to be added per cubic meter (m3) of soil for:
a. 90% degree of saturation
b. 100% degree of saturation
The moist unit weight of a soil is 21kN / (m ^ 3) . Its dry unit weight is 18kN / (m ^ 3) Given that G_{S} = 2.71 determine: a) Moisture content, b) Void ratio, c) Degree of saturation, d) Weight of water per cubic meter of soll (i.e. with units of kN/m^ 3 ). , to be added to reach full saturation.
For a given soil, the following are known, Gs = 2.70, moist unit weight is 20.3067kN/m3, and the
moisture content of 15%. Determine the:1. Dry unit weight (in kN/m3).
2. Saturated unit weight unit weight (in kN/m3).3. Effective unit weight (γ′) of the soil sample (in kN/m3).
4. Void Ratio5. Porosity (in %).6. Degree of saturation (in %).7. Determine the volume of water in liters to be added per cubic meter of soil for a 100% degree ofsaturation.If the sample has weight of 50g, determine the:8. Weight of the solid9. Weight of the water10. Weight of the air11. Volume of solid12. Volume of water13. Volume of air
Chapter 3 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
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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- ANSWER NUMBER 2 For a given soil, the following are known: Gs = 2.74, moist unit weight is 20.6 kN/m3, and moisture content is 6%. Determine: Dry unit weight Void ratio Porosity Degree of saturation 2. Refer to Problem 1. Determine the weight of water, in kN, to be added per cubic meter (m3) of soil for 90% degree of saturation 100% degree of saturationarrow_forward3.4 For a given soil, the following are known: Gs 5 2.74, moist unit weight, 5 20.6 kN/m3, and moisture content, w 5 16.6%. Determine:a. Dry unit weightb. Void ratioc. Porosityd. Degree of saturation3.15 Refer to Problem 3.14. Determine the mass of water, in kg, to be added per cubic meter (m3) of soil fora. 90% degree of saturationb. 100% degree of saturationarrow_forward3) For a given moist soil, given that volume = 33m3; mass = 33kg; moisture content = 10%; Gs = 2.7, calculate the following: a. Moist density (kg/m3) b. Dry density (kg/m3) c. Void ratio d. Porosity e. Degree of saturation (%) f. Volume occupied by waterarrow_forward
- For a given Soil, the following are known. Gs = 2.74, moist unit weight = 19Kn/m3 and moisture content = 17%.a. Determine the weight of water in KN to be added per cubic meter of soil for a100% degree of saturation.b. Determine the weight of water in KN to be added per cubic meter of soil for93% degree of saturation.arrow_forward4. An in-situ soil sample weigh 25 kg of 0.02 cubic meter with a moisture content of 7% and specific gravity of 2.8. Determine the following: Moist Unit Weight, Dry Unit Weight, Moist Density, Dry Density, Void Ratio, Porosity, and the Degree of Saturation. (Calculate the Unit Weight and Density in Metric and English Units).arrow_forwardFor a moist soil specimen, the following are given Gs= 2.67, volume = 0.5 m³ moist unit weight = 9.5 KN and the moisture content = 7.3%. Determine Dry unit weight, Void ratio, porosity, Degree of saturation.arrow_forward
- A moist soil has a void ratio of 0.65. The soil moisture content is 14% and its solids density or relative specific weight of solids is 2.7. Determine: a. What is the saturated unit weight in kN/m3?b. How much water, in kN/m3, needs to be added to the soil for it to be completely saturated?c. What would be the wet unit weight in kN/m3 when the degree of saturation is 70%?arrow_forwardQuestion 34 A three-layer soil has the following properties: Layer 1: k = 2.72 x 10^-3 cm/s, H = 3.02 m. Layer 2: k = 1.7 x 10^-2 cm/s, H = 4.93 m. Layer 3: k = 3.16 x 10^-3 cm/s, H = 4.04 m. Determine the equivalent vertical coefficient of permeability of the soil arrangement. Layer 1 is on top of layer 2 while layer 2 is on top of layer 3. Round off to four decimal places.arrow_forwardThe moist unit weight of a soil is 105 lb /ft3. Given that w = 15% and Gs = 2.7, determine a. Weight of water, in lb/ft3, to be added to reach full saturationarrow_forward
- the moist unit weight of a soil is 19.2kN/m3. Given that Gs = 2.69 and w =9.8%, determine the void ratio, dry unit weight and degree of saturationarrow_forwardFor a given soil, the following are given: Gs = 2.6; moist unit weight = 17.05 kN/m3, and moisture content = 10.31%. Determine the weight of water, in kN, to be added per cubic meter of soil to reach 82% degree of saturation.arrow_forwardFor a soil, the following are given: Gs = 2.67, moist unit weight γ = 17. 6 kN/m3, and moisture content w = 10.8 %. Determinea. Dry unit weightb. Void ratioc. Porosityd. Degree of saturationarrow_forward
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