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 3.3P
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Find the moisture content, moist unit weight, dry unit weight, void ratio, porosity, and degree of saturation of the soil sample.
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In its natural state, a moist soil has a volume of 9.35 × 10 −3 m3 and weighs 177.6 × 10−3 kN. The oven-dry weight of the soil is 153.6 × 10 −3 kN. If Gs = 2.67, calculate the moisture content, moist unit weight, dry unit weight, void ratio, porosity, and degree of saturation.
In its natural state, a moist soil has a volume of 0.33 ft3 and weighs 39.93 lb.The oven-dry weight of the soil is 34.54 lb. If Gs = 2.67, calculate the moisturecontent, moist unit weight, dry unit weight, void ratio, porosity, and degree of saturation.
3) For a given moist soil, given that volume = 33m3; mass = 33kg; moisture content = 10%; Gs = 2.7, calculate the following: a. Moist density (kg/m3) b. Dry density (kg/m3) c. Void ratio d. Porosity e. Degree of saturation (%) f. Volume occupied by water
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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- The porosity of soil is 22%. The unit weight of soil solids is 22.4459 kN/m^3. Calculate the saturated unit weightarrow_forwardConsider a saturated clay layer of thickness of 6 m on top of a layer of stiff sand. The clay has an initial porosity of 18%Following lowering water level, the clay porosity is reduced to 12%. What is the change in the thickness of the clay layer (corresponding to subsidence) caused by lowering of the water table?arrow_forwardUse the basic relationships of phase diagram representation of soil bulk to determine the wet density, dry density, dry unit weight, moisture content, void ratio, porosity, and the degree of saturation for a wet soil sample, which has a total mass of 35 kg and occupies a total volume of0.027 m3 . When dried int the oven, the dry mass is 6 kg. The specific gravity of the soil solids, Gs= 2.65.arrow_forward
- For a given soil, the following are given: Gs = 2.6; moist unit weight = 17.05 kN/m3, and moisture content = 10.31%. Determine the weight of water, in kN, to be added per cubic meter of soil to reach 82% degree of saturation.arrow_forwardA moist soil has a void ratio of 0.65. The soil moisture content is 14% and its solids density or relative specific weight of solids is 2.7. Determine: a. What is the saturated unit weight in kN/m3?b. How much water, in kN/m3, needs to be added to the soil for it to be completely saturated?c. What would be the wet unit weight in kN/m3 when the degree of saturation is 70%?arrow_forwardFor a given Soil, the following are known. Gs = 2.74, moist unit weight = 19Kn/m3 and moisture content = 17%.a. Determine the weight of water in KN to be added per cubic meter of soil for a100% degree of saturation.b. Determine the weight of water in KN to be added per cubic meter of soil for93% degree of saturation.arrow_forward
- A soil sample in its natural state has, when fully saturated, a water content of 32.5%. Specific gravity is 2.69. Determine the void ratio (in 3 decimal places). Calculate the total weight of water required to saturate a soil mass of volume 10 m3 (in KN). Determine the unit weight of the sample in its natural state (in KN/m3).arrow_forwardIn an undisturbed soil formation, it is known that the dry unit weight is 18.06 kN/m3. The specific gravity of the soil particles is 2.75. (a) What is the saturated wet unit weight of the soil, in kN/m3 and pcf? (b) What is the submerged effective weight of the soil, in kN/m3 and pcf? (c) What is the submerged effective density (Mg/m3)?arrow_forward1. How many millimetres (equivalent depth) of water are contained in a soil profile 1 metre deep if the mass water content of the upper 400 mm depth is 15% and that of the lower 600 mm is 20%. The bulk density in the upper layer is 1300 kg m-3 and in the lower layer is 1500 kg m-3. Assume ρw = 1000 kg m-3.How much water does the soil contain (in cubic metres) per 1.5 hectares of land?arrow_forward
- At the stage of Maximum Retentive Capacity, a soil's volumetric water content is equal to its total porosity. True or Falsearrow_forwardThe moist unit weight of a soil is 16.5kN/m^3. Given that water content is 15% and specific gravity is 2.70, determine the mass of water in kg/m^3 that must be added to reach the full saturation?arrow_forwardIn its natural state, a moist soil has a volume of 0.33 ft3 and weighs 39.93 lb. The oven-dried weight of the soil is 34.54 lb. If Gs=2.67, calculatea) Moisture content (%) b) Moist unit weight (lb/ft3)c) Dry unit weight (lb/ft3) d) Void ratio, ee) Porosity, n f) Degree of saturation, S (%)arrow_forward
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