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 2, Problem 2.11P
The grain-size characteristics of a soil are given in the following table.
a. Draw the grain-size distribution curve.
b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system.
c. Repeat Part b using the USDA system.
d. Repeat Part b using the AASHTO system.
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The particle size characteristics of a soil are given in
the table. Using USDA method, determine:
Size (mm)
Percent Finer
4.75
98
0.85
95
0.044
36
0.033
32
0.0062
19
0.0025
9.
0.0011
1. Percentage of gravel (in 4 decimal places)
2. Percentage of sand (in 4 decimal places)
3. Percentage of silt (in 4 decimal places)
4. Percentage of clay (in 4 decimal places)
2. The particle size characteristics of a soil is given at the table below.
Classify the soil using Textural Classification System/USDA.
Size (mm)
Percent Finer
100
0.425
0.100
92
0.052
84
0.020
62
0.010
46
0.004
32
0.001
22
7. Following details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify
each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and Cc = 1.22. Your solution may be presented in similar
form as what was included in your module 4.
Sieve Analysis (Percent Finer)
Soil No
Liquid Limit
Plastic Limit
No. 10
No. 40
No. 200
98
80
50
38
29
2
100
92
80
56
23
100
88
65
37
22
4
85
55
45
28
20
92
75
62
43
28
6
48
28
N.A.
NP
7
87
62
30
32
24
8
90
76
34
37
25
100
78
8
N.A.
NP
10
92
74
32
44
35
Chapter 2 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 2 - For a gravel with D60 = 0.48 mm, D30 = 0.25 mm,...Ch. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - The following are the results of a sieve analysis....Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - The following are the results of a sieve and...Ch. 2 - Repeat Problem 2.8 using the following data. 2.8...Ch. 2 - Repeat Problem 2.8 using the following data. 2.8...
Ch. 2 - The grain-size characteristics of a soil are given...Ch. 2 - Repeat Problem 2.11 with the following data. 2.11...Ch. 2 - Repeat Problem 2.11 with the following data. 2.11...Ch. 2 - A hydrometer test has the following result: Gs =...Ch. 2 - Repeat Problem 2.14 with the following values: Gs...Ch. 2 - Three groups of students from the Geotechnical...Ch. 2 - Refer to Problem 2.C.1. Results of the sieve...
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- The particle characteristics of a soil are given below. Draw the particle-size distribution curve and find the percentages of gravel, sand, silt, and clay according to the MIT system (Table 2.3).arrow_forwardThe following are the results of a sieve and hydrometer analysis: Sieve number/ Percent finer than Analysis grain size Sieve 20 100 30 96 40 90 60 76 80 65 200 34 Hydrometer 0.05 mm 27 0.03 mm 19 0.015 mm 0.006 mm 7 0.004 mm 0.0015 mm 5 a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Determine the percentages of gravel, sand, silt, and clay according to the USDA system. d. Determine the percentages of gravel, sand, silt, and clay according to the AASHTO system.arrow_forward7. Following details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and C = 1.22. Your solution may be presented in similar form as what was included in your module 4. Sieve Analysis (Percent Finer) Soil No Liquid Limit Plastic Limit No. 10 No. 40 No. 200 1 98 80 50 38 29 2 100 92 80 56 23 3 100 88 65 37 22 4 85 55 45 28 20 5 92 75 62 43 28 6 48 28 6 N.A. NP 7 87 62 30 32 24 8 90 76 34 37 25 9 100 78 8 N.A. NP 10 92 74 32 44 35arrow_forward
- Please answer this problem using the AASHTO system. NOT the MIT system. Thank you! The particle characteristics of a soil are given below. Draw the particle-size distribution curve and find the percentages of gravel, sand, silt, and clay Size (mm) Percent Finer 0.850 100.0 0.425 92.1 0.250 85.8 0.150 77.3 0.075 62.0 0.040 50.8 0.020 41.0 0.010 34.3 29.0 0.006 0.002 23.0arrow_forwardThere are four soil samples used for a laboratory research study. After performing the sieve analysis and hydrometer analysis, the results are plotted and tabulated (as shown in the following slides). Please refer to the Grain Size Distribution Graph and Table to answer the problems below (show your solution). a. Determine the D60, D30, and D10 for Soils 1, 2, 3 and 4. b. Determine the coefficient of uniformity for Soils 1, 2, 3 and 4. c. Determine the coefficient of gradation for Soils 1, 2, 3 and 4. d. Determine the percentage of gravels, sands, and fines according to Unified Soil Classification System for Soils 1, 2, 3, and 4. e. Which one is coarser: Soil 1 or Soil 2? Justify your answer. A SILLIMAN UNIVERSITY & COLLEGE OF ENGINEERING AND DESIGN DEPARTMENT OF CIVIL ENGINEERING Lecturer: Dr. Christine Langcuyan-Berquist, R.CE, M.Eng, D.Eng Long Quiz No. 02: CE 36 - Geotechnical Engineering I 17 March 2022, Thursday MacBook Pro % & 5 6 9. %3D T Y P 11 G J K M * C0arrow_forward5. The results of a particle size analysis of a soil are given in the following table. The Atterberg limit tests yielded LL=62, PL = 20. Sieve Opening (mm) Percent Coarser by Weight Sieve No. 4.75 5.1 10 2.00 10.0 20 0.85 0.425 40.7 40 70.2 84.8 90.5 60 0.25 100 0.15 200 Pan 0.075 100 a) Draw the gradation curve for this soil b) Determine the uniformity coefficient and the coefficient of curvature c) Classify the soil using USCS and ASSHTO d) Rate this soil as a subgrade for highway constructionarrow_forward
- The following are the results of a sieve and hydrometer analysis. Analysis Sieve number/grain size Percent finer Sieve 40 100 80 97 170 92 200 90 Hydrometer 0.04 mm 74 0.015 mm 42 0.008 mm 27 0.004 mm 17 0.002 mm 11 a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system.arrow_forwardThe results of particle size analyses and, where appropriate, limit tests on samples of four soils are given in Table Q1. Allot group symbols and give main and qualifying terms appropriate for each soil. Table Q1 Percentage smaller Sieve Particle size size Soil A Soil B Soil C Soil D 20mm 100 6.3mm 94 100 2mm 69 98 600µm 32 88 100 212µm 13 67 95 100 63 μη 2 37 73 99 0.020mm 22 46 88 0.006mm 11 25 71 0.002mm 4 13 58 Liquid limit Non-plastic 32 78 Plastic limit 24 31 a) Draw the particle size distribution curve for four samples. b) Determine the coefficients of uniformity and curvature for soil A and B. c) Allot group symbols and give main and qualifying terms appropriate for soil A. d) Allot group symbols and give main and qualifying terms appropriate for soil B. e) Allot group symbols and give main and qualifying terms appropriate for soil C. f) Allot group symbols and give main and qualifying terms appropriate for soil D.arrow_forwardEXERCICE 4 Sieve analysis was performed from which the results were summarized in the following table. 1 a) Plot the grain size curve b) Calculate the coefficient of uniformity and the coefficient of gradation. c) Give a first idea about the classification of such soil. U.S. Sieve Opening (mm) Mass retained in each sieve (gr) 1 20 4 4.750 10 2.000 40 20 0.850 60 40 0.425 89 60 0.250 140 80 0.180 122 100 0.150 210 200 0.075 56 Pan 12arrow_forward
- Complete the table below and determine the percentages of gravel, sand, silt, and clay based on MIT, AASHTO, USDA, and USCS. Use logarithmic interpolation if needed. SIEVE SIZE (mm) 0.25 0.149 0.074 0.052 0.02 0.01 0.004 0.001 Pan WEIGHT RETAINED 18.96 33.18 45.03 54.51 42.66 11.85 4.74 4.74 21.33 CUMULATIVE WEIGHT RETAINED PERCENT PASSINGarrow_forwardQuestion 42 The given data shows a sieve analysis of a soil sample. Classify the soil using AASHTO Method. Tables are provided below. Sieve No. Diameter (mm) Percent Passing No. 4 4.760 100 No. 8 2.380 88 No. 10 2.000 69 No. 20 0.840 61 No. 40 0.420 56 No. 60 0.250 43 No. 100 0.150 19 No. 200 0.075 9. Characteristics of No. 40 Fraction LL PL General classification Granular materials (35% or less of total sample passing No. 200) A-1 A-2 Group classification A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 Sieve analysis (percent passing) No. 10 50 max. No. 40 No. 200 30 max. 15 max. 50 max. 25 max 51 min. 10 max. 35 max. 35 max. 35 max 35 max. Characteristics of fraction passing No. 40 Liquid limit. Plasticity index 40 max. 41 min. 40 max. 41 min. 6 max NP 10 max. 10 max. 11 min. 11 min. Usual types of significant constituent Stone fragments. gravel, and sand Fine Silty or clayey gravel and sand sand materials SUS F1 F2 F3 F4 FS F6 F7 F8 24 4 % & 5 R Y 因arrow_forwardGiven the soil particle distribution: Gravel- 20% Sand- 15% Silt- 20% Clay- 45%. Calculate the modified percentage of sand.arrow_forward
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