Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 3, Problem 3.17P
To determine
Find the moist unit weight of the soil.
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The moist unit weight of soil is 16.5 KN/m3. Given that the w = 15 % and Gs= 2.70, find:a) Dry unit weight ϒd,b) The porosity,c) The degree of saturation S, andd) The mass of water in kg m /m3 that must be added to reach full saturation.
The porosity of soil is 0.35 and Gs = 2.69. Determine the following:a) Saturated unit weight
b) Buoyant unit weightc) Moisture content when the moist unit weight is 17.5 KN/cu.m.
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%?
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- The 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_forward11. Situation 11 - The moist unit weight and degree of saturation of a soil are given in the following table. a. Determine the unit weight of the soil in kN/m3 if s = 13%. Round off to two decimal places. bDetermine the unit weight of the soil in kN/m3 if s = 69%. Round off to two decimal places. c. Determine the saturated unit weight in kN/m3. Round off to two decimal places.arrow_forwardFor a given sandy soil, the maximum and minimum dry unit weights are 17.23 kN/m3and 15.45 kN/m3, respectively. Given Gs = 2.71, determine the moist unit weight ofthis soil when the relative density is 72% and the moisture content is 13%.arrow_forward
- 14 A three-layer soil has the following properties: Layer 1: k = 2.75 x 10^-3 cm/s, H = 3.92 m. Layer 2: k = 1.5 x 10^-2 cm/s, H = 4.9 m. Layer 3: k = 3.41 x 10^-3 cm/s, H = 4.07 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_forwardFor a given sandy soil, the maximum and minimum dry unit weights are 16.98 kN/m3 and 14.46 kN/m3, respectively. Given Gs = 2.65, determine the moist unit weight of this soil when the relative density is 60% and the moisture content is 8%. Show handwritten solutions.arrow_forwardFor a given sandy soil, the maximum and minimum dry unit weights are 16.63 kN/m3, and 14.37 kN/m3, respectively. Given that Gs = 2.66, determine the moist unit weight of this soil when the relative density is 65.92% and the moisture content is 11.42%. Round off to two decimal places.arrow_forward
- Question 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 dry density of a soil is 1760 kg/m3. Given Gs=2.66, wht would be the moisture conntent of the soil when is saturatedarrow_forwardThe moist unit weight of soil is 16.5 KN/ m3. If the water content is 15% and specific gravity of soil is 2.7, determine the following: Dry unit weight Porosity Degree of saturation Mass of water in kg/ m3to be added to reach full saturationarrow_forward
- In a construction project, the field moist unit weight was 08 kN/m3 at a moisture content of 8%. If maximum and minimum dry unit weight determined in the laboratory were 16.93 kN/m3 and 14.46 kN/m3, respectively, what was the field relative density?arrow_forwardDetermine the equivalent depth of water contained in a 1-m soil profile if the mass wetness of the upper 0.2 m is 15 %, 30% for the 0.2 m to 0.6 m layer, and that of the lower 0.4 m is 25%. Assume a bulk density of 1200 kg/m3 in the upper layer, 1280 kg/m3 in the 0.2 to 0.6 m layer, and 1400 kg/m3 in the lower 0.4 m layer. Also, determine how much water the soil contains in cubic meters per hectare of land. (Note: 1 ha = 104 m2).arrow_forwardThe moist unit weight of a soil at 18.77% moisture is 17.42 kN/m3. Determine the mass of water (kg), per cubic meter, that must be added to reach full saturation. The specific gravity of solid soil 2.64.arrow_forward
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