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 3.2P
(a)
To determine
Find the moisture content of the soil sample.
(b)
To determine
Find the moist density of the soil sample.
(c)
To determine
Find the dry density of the soil sample.
(d)
To determine
Find the void ratio of the soil sample.
(e)
To determine
Find the porosity of the soil sample.
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4. An in-situ soil sample weigh 25 kg of 0.02 cubic meter with a moisture content of 7% and specific gravity of 2.8. Determine the following: Moist Unit Weight, Dry Unit Weight, Moist Density, Dry Density, Void Ratio, Porosity, and the Degree of Saturation. (Calculate the Unit Weight and Density in Metric and English Units).
1. A soil sample has a volume of 5400 cm^3 and mass of 10.45 kg, and the water content of the soil is w = 11%. Determine
(a) unit weight , dry unit weight , saturated unit weight,
(b) void ratio and porosity,
(c) degree of saturation
(assume Gs=2.7).
If the soil sample has a specific gravity of 2.71 and a porosity of 0.345, determine the saturated unit weight and the bouyant unit weight.
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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- Given the following data for an undisturbed soil sample: Gs = 2.69, e = 0.65, w = 10% determine wet unit weight and dry unit weight (in kN/m3 and pcf), wet and dry density (mg/m3), and degree of saturation.arrow_forwardFor a soil specimen, the following soil properties are known: saturated unit weight γ = 19.1 kN/m , void ratio e = 0.45. What is the dry unit weight of the specimen? Assume unit weight of water γ = 10 kN/m3arrow_forwardAn undisturbed soil sample in saturated condition has a void ratio of 0.78. Its Specific gravity is 2.71. Determine the water content, saturated unit weight and dry unit weight.arrow_forward
- The mass of a moist soil sample having a volume of 0.0057 m3 is 10.5 kg. The moisture content (w) and the specific gravity of soil solids (Gs) were determined to be 13% and 2.68, respectively. Determinea) Moist density, ρ (kg/m3) b) Dry density, ρd (kg/m3)c) Void ratio, e d) Porosity, ne) Degree of saturation, S (%)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_forwardFor a given soil, the following are known, Gs = 2.70, moist unit weight is 20.3067kN/m3, and the moisture content of 15%. Determine the:1. Dry unit weight (in kN/m3). 2. Saturated unit weight unit weight (in kN/m3).3. Effective unit weight (γ′) of the soil sample (in kN/m3). 4. Void Ratio5. Porosity (in %).6. Degree of saturation (in %).7. Determine the volume of water in liters to be added per cubic meter of soil for a 100% degree ofsaturation.If the sample has weight of 50g, determine the:8. Weight of the solid9. Weight of the water10. Weight of the air11. Volume of solid12. Volume of water13. Volume of airarrow_forward
- 2. A saturated soil with specific gravity of solids equal to 2.65 has a unit weight of 19KN /m^3. Determine the dry unit weight (KN/m^3) and porosity of the soil sample.arrow_forwardThe field density of a soil sample is 1900 kg/m3 and the density of its solid particles is 2700 kg/m3. Compute the dry density, the void ratio and degree of saturation if the sample has a water content of 11.5%arrow_forward3. The mass of a moist soil sample is 1 kg, and its oven dry mass is 843.2 grams. The specific gravity of soil solids is to be 2.8. If the void ratio of the soil in the natural state is 0.80, find the following: a. Dry and Moist Density of the soil in kN/m^3 and pcf. b. Dry and Moist Unit Weight in kN/m^3 and pcf. c. Moisture Content d. Saturation.arrow_forward
- Determine the volume of water flowing through the sample shown in the figure per hour. There are 3 different soil layers and each is 200mm in length and diameter is 150mm. A constant head of 470mm is maintained across the soil sample. The porosity for Soil I is 0.5 and the value of k is 5*10^-3 cm/s. The porosity for Soil II is 0.55 and the value of k is 4.2*10^-2 cm/s. The porosity for Soil III is 0.35 and the value of k is 3.69*10^-4 cm/s. The hydraulic conductivities are measured in the direction of the flow.arrow_forward1. A moist soil sample weighing 0.20 kg having a volume of 200 cm3 and dry unit weight of 16 kN/ m . After mixing water of 65 g, compute the moisture content of the soil.arrow_forward
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