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 6, Problem 6.13P
To determine
Find the dry unit weight in the field and relative density of compaction.
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6. The relative compaction of a sand in the field is 93.5%. Given that dry unit weight max = 16.98 kN/m3 and dry unit weight min = 14.46 kN/m3.
What is the dry unit weights in the field? (Ans: 15.88 kN/m3)
What is the relative density compaction? (Ans: 60.1%)
What is the water content of the sand if the moist unit weight is 18.42 kn/m3. (Ans: 16%)
The relative compaction of a sand in the field is 94%. Given that yalmax) = 16.9
KN/m³, and yamin) = 14.4 kN/m³, what is the dry unit weights in the field and the relative
density of compaction?
The relative compaction of a silty sand in the field is 94%. Given that γd(max) = 17 kN/m3 and γd(min) = 13.8 kN/m3 , determine the dry unit weight in the field and the relative density of compaction.
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Principles of Geotechnical Engineering (MindTap Course List)
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- The relative compaction of a sand in the field is 94%. Given the dry unit weight maximum= 16.2 kN/m3 and the dry unit weight minimum = 14.9 kN/m3.For the field conditions Compute the relative density of compactionarrow_forwardA dry sand 10 m thick has an in-situ dry unit weight of 18 kN/m^3. Using vibroflotation, the surface settled by 1.5 m. The relative density of the sand after this compaction technique yields 93.56%. If the dry unit weight of this dry sand in the loosest state is 10.8 kN/m^3. Determine: 1. The dry unit weight in kN/m^3 after vibroflotation. (2 decimal places) 2. The dry unit weight in kN/m^3 at the densest state. (2 decimal places) 3. Maximum possible settlement in meters of the surface under ideal compaction. (2 decimal places)arrow_forwardThe relative compaction of a sand in the field is 92%. The maximum and minimum dry unit weights of the sand are 16.2kn/m^3 and 14.6Kn/m^3, respectively. For the field condition, determine a. Dry unit weight b. Relative density of compaction c. Moist unit weight at a moisture content of 12%arrow_forward
- A dry sand 5.1 m thick has an in-situ dry unit weight of 13 kN/m^3. Using vibroflotation, the surface settled by 0.5 m. The relative density of the sand after this compaction technique yields 85%. If the dry unit weight of this dry sand in the loosest state is 10.8 kN/m 3. Determine: 1. The dry unit weight in kN/m 3 after vibroflotation. (2 decimal places) 2. The dry unit weight in kN/m^3 at the densest state. (2 decimal places) 3. Maximum possible settlement in meters of the surface under ideal compaction. (2 decimal places)arrow_forwardA. The maximum and minimum dry unit weights of a sand were determined in the laboratory to be 104 lb/ft and 93 lb/ft, respectively. What would be the relative compaction in the field if the relative density is 78%? Q1 B. Given Gs = 2.65, calculate the zero-air-void unit weight for a soil in lb/ft at W = 10%.arrow_forwardA dry sand 3.65 m thick has an in-situ dry unit weight of 18 kN/m^3. Using vibroflotation, the surface settled by 0.67 m. The relative density of the sand after this compaction technique yields 90.44%. If the dry unit weight of this dry sand in the loosest state is 14.48 kN/m^3. Determine: 1. The dry unit weight in kN/m^3 after vibroflotation. (2 decimal places) 2. The dry unit weight in kN/m^3 at the densest state. (2 decimal places) 3. Maximum possible settlement in meters of the surface under ideal compaction. (2 decimal places) nhmontoarrow_forward
- The relative compaction of a sand in the field is 94%. The maximum and minimum dry unit weights of the sand are 18.60 KN/m³and 15.10 KN/m³respectively. For the field condition determine 25) Dry Unit weight? a) 15.25 KN/m³ b) 20.50 KN/m³ c) 17.48 KN/m³ d) 18.90 KN/m³ Relative density of compaction? a) 69.80 % b) 99.20 % c) 72.40 % d) 73.05 % Moist unit weight at a moisture content of 8 % ? a) 19.77 KN/m³ b) 17.66 KN/m³ c) 18.88 KN/m³ d) 18.05 KN/m³arrow_forward15. The relative compaction of a sand in the field is 94%. The max and min dry unit weights of the sand are 16.2 kN/m³ and 14.9 kN/m³, respectively. a. Compute the dry unit weight in the field. b. For field conditions, compute the relative density of compaction.arrow_forward1. The relative compaction of a clayey sand in the field is 90%. In the laboratory, the maximum dry unit weight is 115 ??/??3. If the soil layer before compaction had a void ratio of 0.97 and a thickness of 5.5 ft. What would be the final thickness after compaction? Assume ?? = 2.67. COMPLETE SOLUTION PLEASEarrow_forward
- The relative compaction of a sand in the field is 93.5%. Given the dry unit weight maximum= 16.98 kN/m3 and the dry unit weight minimum = 14.46 kN/m3. What is the water content of the sand in percent if the moist unit weight is 18.42 kN/m3? a.17.1 b.16.0 c.15.2 d.14.3arrow_forwardFor a given sand, the maximum and minimum void ratios are 0.70 and 0.35, respectively. Given G₁ = 2.75, the relative density is 59.0%. Determine the dry unit weight of the soil. (Enter your answer to three significant figures.) Yd= kN/m³arrow_forwardThe results of a constant head permeability test for a fine sand are as follows: Diameter of the sample = 41 cm Length of sample = 66 cm Constant head difference = 30 cm Time of collection = 473 secs Weight of water collected = 416 grams Find the seepage velocity in cm/min. if the void ratio is 0.43.arrow_forward
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