MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
9th Edition
ISBN: 9781337705202
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Chapter 2, Problem 2.5P
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Determine the relative density of the compacted sand.
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The dry density of a sand with a porosity of 0.387 is 1600 kg/ m3, determine the void ratio, specific gravity, and saturated unit weight of soil in KN/ m3.
The dry unit of a sand with a porosity of 0.387 is 1600kg/cu.m. Determine the following:a) Void ratiob) Sp.gr. of soilc) Saturated unit weight of soil in KN/cu.m.
1. The relative compaction of a clayey sand in the field is 90%. In the laboratory, the maximum dry unit weight is 115 ??/??3. If the soil layer before compaction had a void ratio of 0.97 and a thickness of 5.5 ft. What would be the final thickness after compaction? Assume ?? = 2.67.
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MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
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- The total unit weight, relative density, water content, and specific gravity of solids of a given sand are 17.98 KN/m^3, 62%, 7.6% and 2.65, respectively. a. If the minimum void ratio for this soil is 0.35, what would be its maximum void ratio? b. What is its unit weight in the loosest condition?arrow_forwardA 3 layer soil has the following properties from top to bottom. Obtain the equivalent vertical coefficienct of permeability, in cm/sec, round off to 7 decimal places, and obtain the equivalent horizontal coefficient of permeability, in cm/sec, round off to 5 decimal places.arrow_forwardA fine, dry sand with an in-place unit weight of 17. 28 KN/m^3 has a spocific gravity of solids of 2.62. The void ratio at its densest condition is 0.368 and the void ratio at the loosest condition is 0.938. Determine the relative density of the soil.arrow_forward
- For a normally consolidated soil, the following is given: Determine the following: a. The compression index, Cc. b. The void ratio corresponding to pressure of 200 kN/m2arrow_forwardFor a given sand, the maximum and minimum void ratios are 0.78 and 0.43 respectively. Given Gs=2.67, determine the dry unit weight of the soil when the relative density is 65%arrow_forwardAn undisturbed sample of clay is found to have a wet weight of 63 lb, a dry weight of 51 lb, and a total volume of 0.50 ft3. If the specific gravity of soil solids is 2.65, determine the water content, void ratio, and degree of saturation.arrow_forward
- 1. What would you expect when a soil dominated with expanding type of clay is wetted? A.There is an increase in soil dry mass B.There is an increase in soil volume C.There is a reduction in soil dry mass D.There is a decrease in soil volumearrow_forwardThe properties of the given soil below are as follows: Coefficient of Permeability: k1 = 6.25 cm/hr , k2 = 5.75 cm/hr, k3 = 4.5 cm/hr, k4 = 6.25 cm/hr, k5 = 8.15 cm/hr, k6 = 3.6 cm/hr Thickness: H=1.2m, H3= 0.3m, H4= 0.5m, H5=0.4m Length: L1=0.8m, L2= 0.7m, L3= 1.5m, L6=0.9m Head, h= 1.8m a. Determine the total flow per meter. b. Determine the equivalent coefficient of permeability. Please answer this asap. For upvote. Thank you in advancearrow_forward4. A silty sand has a void ratio of in the loosest condition equal to 0.86 and a void ratio of 0.30 in the densest condition. If the relative density of the sand is 54%, calculate the porosity and the specific gravity if the sand has a dry unit weight of 16.85 kN/m³.arrow_forward
- The relative compaction of a sand in the field is 93.5%. Given the dry unit weight maximum= 16.98 kN/m3 and the dry unit weight minimum = 14.46 kN/m3. What is the water content of the sand in percent if the moist unit weight is 18.42 kN/m3? a.17.1 b.16.0 c.15.2 d.14.3arrow_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_forwardThe void ratio for clay soils commonly is greater than the void ratio for the coarse-grained soils, but comparisons of the coefficient of permeability indicate considerably lower values for clay. Explain.arrow_forward
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