Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 3, Problem 3.19P
To determine
Calculate the degree of saturation.
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The transformed coefficient of permeability of an equivalent
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What amount of water in (gr) do we have to add to a soil sample to increase its volume to 25 cm3? We know the following information about this soil: - Soil’s specific gravity is 2.5. - Void ratio (e) is 0.5. - Moisture content is 20%. - The water density is 1 gr/cm3. Hint 1: First calculate the saturation value. Hint 2: When soil is fully saturated, if we add V1 amount of water (m3), the volume of soil will increase directly by V1 (m3). Hint 3: Use the following equation to find the answer: Question 17Answer a. 50 b. We do NOT have enough information c. 12.5
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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- II. A sample of dry sand having a unit weight of 16.00 kN/m³ and a specific gravity of 2.65 is placed in the rain. During the rain the volume of the sample remains constant but the degree of saturation increases to 45%. What is the water content after being in the rain, in percentage? What would be the mass of water. in kg, added to the soil due to exposure to rain (assume unit volume)?arrow_forwardSituation 10: A soil sample has water content of 25%, degree of saturation of 80%, and specific gravity of 2.70. 38. Determine the moist unit weight in g/cc. c.1.897 d. 1.675 a. 1.765 b. 1.831 39. Determine the porosity. 0.458 b. 0548 c. 0.564 d.0.654 a.arrow_forwardA soil engineer collects a sample of soil having a moist unit weight of a soil of 24.5 kN/m³, water content available is 10 % and the specific gravity of the solid is 2.50. what is the degree of saturation of the soil? (unit weight of water = 9.81 kN/m³)arrow_forward
- Given that the field unit weight of a soil sample is 1800 kg per cubic meter the unit moisture content of the soil is 12 percent. O Evaluate the void ratio. ® Evaluate the dry unit weight in kN/m3 ® Evaluate the degree of saturation in percent.arrow_forwardThe moisture content of a soil sample is 17% and the dry unit weight is 16.51 kN/m^3 . If Gs = 2.69, what is the degree of saturation?arrow_forwardA soil sample has a unit weight of 1.9 g/cc and w=12%. If Gs of solids is 2.65, determine the degree of saturation and porosity in percent.arrow_forward
- A saturated soil sample has the following properties: water content = 86 % void ratio = 0.7 What is the specific gravity of the soil? What is the saturated unit weight of soil in KN/m3? use unit weight of water equal to 9.8 KN/m3.arrow_forward10. The dry density of the soil sample, p d, is 1960 kg/m³, and the dry density of the soil solids, p s, is 2700 kg/m³. If emax = 0.69 and emin =0.44: a. what is the dry unit weight in kN/m³ if the water content is 11%? b. what is the void ratio of the soil sample? c. what is the relative density of the soil sample?arrow_forwardA soil mass has coefficients of horizontal and vertical permeability as 8 x 107 cm/s and 2 x 107 cm/s, respectively. The transformed coefficient of permeability of an equvivalent isotropic soil mass isarrow_forward
- A soil sample has a unit weight of 1.9 g/cc and w=12%. If Gs of solids is 2.65, determine the porosity in percent.arrow_forwardLL = 50% and PL = 23% If the soil had a natural water content of 56% prior to the Atterberg Limit test, explain the consistency condition of the soil at site.arrow_forwardAn undisturbed sample of soil has a volume of 29 cm³ and weighs 48 g. The dry weight of the sample is 42 g. Gs = 2.6. S What is the value of the natural water content in percentage? What is the value of the in-situ void ratio? What is the value of the degree of saturation in percentage? What is the percentage of air in voids?arrow_forward
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