Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Please solve each problem 2.1 to 2.6
2.1 A soil specimen has a volume of 0.05 m and a mass of 87.5 kg. Given: w = 15%, G, = 2.68. Determine a. Void ratio b. Porosity c. Dry unit weight d. Moist unit weight e. Degree of saturation 2.2 The saturated unit weight of a soil is 20.1 kN/m' at a moisture content of 22%. Determine (a) the dry unit weight and (b) the specific gravity of soil solids, G,. 2.3 The moist unit weight of a soil is 119.5 lb/ft'. For a moisture content of 12% and G, = 2.65, calculate: a. Void ratio b. Porosity c. Degree of saturation d. Dry unit weight 2.4 A saturated soil specimen has w = 36% and y, = 85.43 lb/ft'. Determine: a. Void ratio b. Porosity c. Specific gravity of soil solids d. Saturated unit weight (in lb/ft') 2.5 For a granular soil, given: y 116,64 lb/ft', D, = 82%, w 8%, and G, = 2.65. For this soil, if emin = 0.44, what would be emux? What would be the dry unit weight in the loosest state? 2.6 The laboratory test results of six soils are given in the following table. Classify the soils by the AASHTO Soil Classification System and give the group indices. Sieve Analysis-Percent Passing Soil Sieve No. A в C DE F 100 95 4 100 95 95 100 100 10 80 80 90 94 94 40 82 61 54 79 76 86 76 52 200 65 55 8 64 33 NP Liquid limit Plastic limit 42 38 35 38 26 25 NP 26 25 28 *NP = nonplastic
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Transcribed Image Text:2.1 A soil specimen has a volume of 0.05 m and a mass of 87.5 kg. Given: w = 15%, G, = 2.68. Determine a. Void ratio b. Porosity c. Dry unit weight d. Moist unit weight e. Degree of saturation 2.2 The saturated unit weight of a soil is 20.1 kN/m' at a moisture content of 22%. Determine (a) the dry unit weight and (b) the specific gravity of soil solids, G,. 2.3 The moist unit weight of a soil is 119.5 lb/ft'. For a moisture content of 12% and G, = 2.65, calculate: a. Void ratio b. Porosity c. Degree of saturation d. Dry unit weight 2.4 A saturated soil specimen has w = 36% and y, = 85.43 lb/ft'. Determine: a. Void ratio b. Porosity c. Specific gravity of soil solids d. Saturated unit weight (in lb/ft') 2.5 For a granular soil, given: y 116,64 lb/ft', D, = 82%, w 8%, and G, = 2.65. For this soil, if emin = 0.44, what would be emux? What would be the dry unit weight in the loosest state? 2.6 The laboratory test results of six soils are given in the following table. Classify the soils by the AASHTO Soil Classification System and give the group indices. Sieve Analysis-Percent Passing Soil Sieve No. A в C DE F 100 95 4 100 95 95 100 100 10 80 80 90 94 94 40 82 61 54 79 76 86 76 52 200 65 55 8 64 33 NP Liquid limit Plastic limit 42 38 35 38 26 25 NP 26 25 28 *NP = nonplastic
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Determination of void ratio, porosity and degree of saturation
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