Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.2QPP
A certain saturated sand
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A certain saturated sand (S = 100,) has a moisture content of 25.1 percent and a specificgravity of solids of 2.68. It also has a maximum index void ratio of 0.84 and a minimum indexvoid ratio of 0.33. Compute its relative density and classify its consistency.
A certain saturated sand (S = 100%) has a moisture content of 25.1% and a specific gravity of solids of 2.68. It also has a maximum void ratio of 0.84 and a minimum void ratio of 0.33. Calculate its relative density and classify its consistency
A sample of uniform sand has a porosity of 43%.From the lab test, the value of the void ratio in theloosest condition is 0.85 and a void ratio of 0.35 inthe densest condition. If the water content is 12%and Gs = 2.7. Determine the following:a) Density indexb) Degree of saturationc) Determine the moist unit weight
Chapter 3 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 3 - Explain the difference between moisture content...Ch. 3 - A certain saturated sand has a moisture content...Ch. 3 - Consider a soil that is being placed as a fill and...Ch. 3 - A sample of soil has a volume of and a weight of...Ch. 3 - A site is underlain by a soil that has a unit...Ch. 3 - The sub-surface profile at a certain site is shown...Ch. 3 - A vertical load of 300 kN is applied to a area at...Ch. 3 - A vertical load of 20 k is applied to a area at...Ch. 3 - 3m3m footing is to be built on the surface of a 15...Ch. 3 - A 3 ft square footing carries a sustained load of...
Ch. 3 - A 2m thick fill is to be placed on the soil shown...Ch. 3 - Estimate the effective friction angle of the...Ch. 3 - Explain the difference between the drained...Ch. 3 - A soil has c=5 kPa and =32. The effective stress...Ch. 3 - A footing with an embedment of 2 m is embedded in...Ch. 3 - Prob. 3.16QPPCh. 3 - Prob. 3.17QPPCh. 3 - A 9 ft thick fill is to be placed on the soil...
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- A 588 cm³ volume of moist sand weighs 1010 gm. Its dry weight is 918 gm and specific gravity of solids, G is 2,67. Assuming density of water as 1 gm/cm³, the void ratio isarrow_forwardA sample of sand has a relative density of 40% with a specific gravity of solids of 2.65. The minimum void ratio is 0.50 and the maximum void ratio is 0.95. What is the unit weight (in units of pcf) of this sand in the saturated condition?arrow_forwardA sand with Gs= 2.66 and void ratio e=0.60 is completely dry. It been becomes wetted by a rising groundwater table. Compute the unit weight in KN/cu.m. under the following conditions:a) When the sand is completely dryb) When the sand is 40% saturatedc) When the sand is completely saturatedarrow_forward
- 4. 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_forwardThe 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_forward3. A sample of soft saturated clay has a volume of 100 cm3 and weighs 175 grams. If the oven dry weight is 120 grams, compute the water content, void ratio and specific gravity of the clay.arrow_forward
- A saturated clay has a water content of 39.3% and a bulk specific gravity of 1.84. Determine the void ratio and specific gravity of particles.arrow_forwardA sand has a natural water content of 5% and bulk unit weight of 18.0 kN/m3. The void ratios corresponding to the densest and loosest state of this soil are 0.51 and 0.87. Find the relative density and degree of saturation.arrow_forwardA loose, uncompacted sand fill 1.8 m. depth has a relative density of 40% Laboratory test indicated that the minimum and maximum void ratios of the sandare 0.46 and 0.90 respectively. Specific gravity of the solids of the sand is 2.65.a) Determine the void ratio of the sand having a relative density of 40%b) What is the dry unit weight of the sand?c) If the sand is compacted to a relative density of 75%, what is the decrease in the thickness of the 1.8m fill?arrow_forward
- A sample of silty clay has a volume of 14.88 cm3, a total weight of 28.81 gms, a dry weight of 24.83 gms and a specific gravity of 2.7. Determine the void ratio and the degree of saturationarrow_forwardA saturated sample of inorganic clay has a volume of 21.4 cm3 and weighs 36.7 g. After drying, the volume is 13.7 cm3. The weight of dry soil is 23.2 g. Determine the following: (a) Water content, (b) specific gravity, (c) void ratio, (d) saturated unit weight, (e) dry unit weight, (f) shrinkage limit.arrow_forwardThe coefficient of permeability of sand at a void ratio of 0.80 is 0.47 mm/s. Estimate the coefficient of permeability of this sand at a void ratio of 0.50.arrow_forward
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