3. The following results were obtained from particle size distribution analysis of three soils - A, B and C. Sieve # Diameter (mm) Percent passing Soil A Soil B Soil C 1/2 in 12.5 100 3/8 in 9.5 96 100 #4 4.75 89 98 #10 2 82 82 #40 0.425 67 33 100 #100 0.15 57 12 #200 0.075 47 25 99 97 0.02 28 85 0.003 8 55 0.001 3 43 Required: (1) Plot the particle size distribution curves (semi-log). Determine the following quantities of each soil: the effective particle size d10, the mean particle side d50, the coefficients of uniformity and curvature (if possible). (2) According to the particle size distribution, when the engineering properties are concerned, which soil is the most sensitive to water and which soil is mostly affected by density? Give you logic. (3) Classify the soils according to the USCS.
3. The following results were obtained from particle size distribution analysis of three soils - A, B and C. Sieve # Diameter (mm) Percent passing Soil A Soil B Soil C 1/2 in 12.5 100 3/8 in 9.5 96 100 #4 4.75 89 98 #10 2 82 82 #40 0.425 67 33 100 #100 0.15 57 12 #200 0.075 47 25 99 97 0.02 28 85 0.003 8 55 0.001 3 43 Required: (1) Plot the particle size distribution curves (semi-log). Determine the following quantities of each soil: the effective particle size d10, the mean particle side d50, the coefficients of uniformity and curvature (if possible). (2) According to the particle size distribution, when the engineering properties are concerned, which soil is the most sensitive to water and which soil is mostly affected by density? Give you logic. (3) Classify the soils according to the USCS.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:3. The following results were obtained from particle size distribution analysis of three soils
- A, B and C.
Sieve #
Diameter (mm)
Percent passing
Soil A
Soil B
Soil C
1/2 in
12.5
100
3/8 in
9.5
96
100
#4
4.75
89
98
#10
2
82
82
#40
0.425
67
33
100
#100
0.15
57
12
#200
0.075
47
25
99
97
0.02
28
85
0.003
8
55
0.001
3
43
Required:
(1) Plot the particle size distribution curves (semi-log). Determine the following
quantities of each soil: the effective particle size d10, the mean particle side d50, the
coefficients of uniformity and curvature (if possible).
(2) According to the particle size distribution, when the engineering properties are
concerned, which soil is the most sensitive to water and which soil is mostly affected
by density? Give you logic.
(3) Classify the soils according to the USCS.
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