Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4.7QPP
Using the CPT data in Figure 4.22, a unit weight of
- Soil behavior type
-
- Consistency (based on Table 3.3)
-
-
Expert Solution & Answer
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B. (
A Soil Specimen has the following characteristics:
% passing No.4 sieve = 85
% passing No.200 sieve = 11
D60 = 2 mm
D30 = 0.35 mm
D10 = 70 μm
L.L = 36%
P.L = 31%
D8 = 2 μm
1. Classify the specimen according to the Unified Soil Classification System
(USCS). Assign the group name and the group symbol.
2. Determine the soil activity.
3. Determine the soil Liquidity index and consistency index if we = 26%.
J
Q.1.A A soil specimen have void ratio (e) of 0.7, Gs 2.72. Calculate the total unit weight, dry
unit weight, and water content at degree of saturation equals 75%.
B. Classify the following soil using the USCS.
Finer (%)
100
90
60
30
19
4
Sieve
No. 4
No. 25
No. 50
No. 100
No. 200
12.5 mm
(Diameter)
(4.7 mm)
(0.7 mm)
(0.3 mm)
(0.15 mm)
(0.075 mm)
Following are the results from the liquid and plastic limit
test for a soil.
No. of blows (N)
Moisture Content %
16
39.5
20
36.1
28
30.0
a. Compute the liquid limit.
b. Compute the plasticity index.
C. Compute the liquidity index if the insitu moisture
content is 26.5%.
d. Compute the consistency index.
Chapter 4 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 4 - Describe a scenario that would require a very...Ch. 4 - How would you go about determining the location of...Ch. 4 - A five-story office building is to be built on a...Ch. 4 - A two-story reinforced concrete building is to be...Ch. 4 - Discuss the advantages of the CPT over the...Ch. 4 - A standard penetration test was performed in a 150...Ch. 4 - Using the CPT data in Figure 4.22, a unit weight...Ch. 4 - Prob. 4.8QPPCh. 4 - Prob. 4.9QPPCh. 4 - A series of vane shear tests have been performed...
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- The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Number of blows, N 15 21 29 38 Moisture content (%) 39.5 37.9 36.4 35.1 Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.arrow_forward. Problem 3- From the following data of the grain size analysis Sieve size system #4 #8 # 10 #25 #60 # 100 #200 Pan Sieve opening (mm) 4.76 2.36 2.00 0.71 0.25 0.149 0.074 Determine; a) Cu and Cc % Finer (by weight) 80 56 51 35 18 13 7 I b) classify the soil using the unified soil classificationarrow_forwardHomework 1-Results from liquid and plastic limit tests conducted on a soil are Moisture given below. Plastic limit tests: PL 13.4% a) Draw the flow curve and obtain the liquid limit. b) What is the plasticity index of the soil? C) Determine the liquidity index of the soil if Win situ = 32% Number of blows, N content (%) 39.2 %3D 15 34.5 22 26 31.2 29.0 %3D 29 U.S. sieve no. Mass of soil retained 1- The followiarrow_forward
- 4. Phase Diagram A soil sample was obtained at the underground parking garage that Dr. Barry is constructing at his home with a volume (VT) of 0.05 ft', total weight (WT) of 4.2 lbs, weight of water (Ww) of 0.37 lbs and a specific gravity (Gs) 2.70. Draw a complete phase diagram and determine the void ratio (e), moist unit weight (y), saturated unit weight (ysat), dry unit weight (Yary), weight of the solids (W.), volume occupied by the solids (V.), volume occupied by the water (V), volume occupied by the air (VA). volume of the voids (Vv), porosity (n), moisture content (w), and percent saturation (S). Use English units in your solution. Show all of your work.arrow_forwardThe following are results from the liquid and plastic limit test for a soil. No. of blows (N) Moisture content (%) 15 42 20 40.8 28 39.1 The plastic limit is 18.7%. 1. Compute the liquid limit using table. 2. What is the plasticity index of the soil. 3. What is the liquidity index if the water content is 24%. 4. What is the consistency index.arrow_forwardClassify the soil using AASHTO. The liquid limit and plastic limit are found to be 30 and 20, respectively. The following data are obtained: Percent passing No. 4 sieve: 100% Percent passing No. 10 sieve: 91% Percent passing No. 40 sieve: 60% Percent passing No. 200 sieve: 20%arrow_forward
- HI PLEASE HELP. NEED ASAP. COMPLETE SOLUTION. SOIL MECHANICS.A soil excavated from a borrow pit has an in place dry unit weight of 18.51 kN/cu.m. In the lab, the values of dry max and min unit weights are 20.79kN/cu.m and 14.16 kN/cu.m respectively.DETERMINE THE FF: A. Compute the relative density of the soil samplein percent. B.Compute the void ratio in the natural condition if emax=0.921and emin=0.289. C.Compute the specific gravity of the soil.arrow_forwardA cylindrical soil sample prepared for laboratory testing has a diameter of 71 mm, aheight of 142 mm, and weighs 10.675 x10^-3 kN. If the degree of saturation is 93%and the specific gravity of soil solids is 2.71, determine the void ratio,and water content. Please this asap. For upvote. Thanksarrow_forward5.5 The modified Proctor test (ASTM D 698, method C) was performed for a soil with G, = 2.70, and the results are as follows: Moist Weight in Mold, gf Water Content, % 6.5 3250 9.3 3826 12.6 4293 14.9 4362 17.2 4035 18.6 3685 (d) What is y at wopi? (e) What is the range of water content if the relative compaction (R.C.) is required to be 95% of the modified Proctor Ya.max?arrow_forward
- Problem Set 4 4. The following data were obtained from the liquid and plastic limit tests for a soil: Liquid Limit Test: Number of blows (N) Molsture content (%) a) Draw the flow curve from the liquid limit test data and find the liquid limit. (use excel to graph) b) What is the plasticity index of 17 42.1 22 38.2 27 36.2 32 34.1 Plastic Limit Test: Moisture content = 21.3% the soil?arrow_forwardQ 05: (CLO 3) For a given soil, the following are given in Table: Specific Gravity Gs, bulk unit weight γ), and moisture content (w). Use data from the table according to your registration number. (You can solve answer on paper and paste neat clear image in the answer). Student Registration Number Gs γ (kN/m3) moisture content (w) % 102 2.72 17.2 20 Determine: Dry unit weight Void ratio Porosity Degree of saturationarrow_forwardSr B. ( A Soil Specimen has the following characteristics: % passing No.4 sieve = 85 % passing No.200 sieve = 11 D60 = 2 mm D30=0.35 mm D₁0 = 70 μm D8=2 μm L.L = 36% P.L = 31% 1. Classify the specimen according to the Unified Soil Classification System (USCS). Assign the group name and the group symbol. 2. Determine the soil activity. 3. Determine the soil Liquidity index and consistency index if wc = 26%.arrow_forward
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