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 3.15P
To determine
Find the dry unit weight of the soil in
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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.
For 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%
The bulk unit weight of the soil is 16.680 kN/m3 at a saturation of 36.870 % and the effective unit weight is 9.580 kN/m3. If the maximum and minimum void ratio of the soil is 0.880 and 0.390, respectively, determine the following: max dry unit weight , relative density , saturated unit weight
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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- 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_forwardan undisturbed 1200 cm^3 sample of sand weighs 19.5 N when dry. The void ratios at the maximum and minimum unit weight were determined to be 0.43 and 0.92. The specific gravity of solids is known to be 2.73. Calculate the dry unit weight of sand in kN/m^3arrow_forwardA clay layer having a thickness of 12.51 m. has an initial void ratio of 1.39. It is compressed and the void ratio changed to 0.87. Determine the reduction in thickness, in mm., of the clay layer.arrow_forward
- A compressible 6 m thick clay layer has initial void ratio of 1.70. If final void ratio after construction of building is expected to be 1.61, then what is the coefficient of volume compressibility of soil layer? Assume that during settlement, 150 kN/m^2 increment in stress is observed.arrow_forwardA sand is densified by compaction at a site so that the void ratio changes from 0.80to2.70. what is the increase (change) in dry unit weight of the sand in kN/m^3?arrow_forwardThe moist unit weight of a soil is 19.2 kN/m3. Given that Gs = 2.69 and w = 9.8%, determine:a. Void ratiob. Dry unit weightc. Degree of saturationarrow_forward
- 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.arrow_forwardthe 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_forwardEstimate the vertical coefficient of permeability for a uniform clay deposit where representative test results are as shown: LL = 92, PL = 34 percent of clay size particles in the soil =40 void ratio ( approximate ) = 1.75arrow_forward
- A clay layer having a thickness of 14.23m has an initial void ratio of 1.11. It is compressed and the void ratio changed to 0.82. Determine the reduction in thickness, in mm, of the clay layer. Round off to three decimal places.arrow_forwardThe compression diagram of a pre-compressed clay indicates that it had compressed under a pressure of 240 kN / m2. The compression ratio is 0.9; Your space vacuum under a pressure of 180 kN / m2 is 1.5. Estimate the void ratio if the effort s increases to 360 kN / m2.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
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