Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 2, Problem 2.7QPP
Using the data shown in Figure 2.5 determine the probability that the tangent of the friction angle for the mudstone at the Confederation Bridge site is less than 0.25.
Figure 2.5
Histogram of tangent of residual friction angle of mudstone at the Confederation Bridge site, Canada.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule04:00
Students have asked these similar questions
Q.64 In an unconfined compression test, a sample clay 100 mm and 50 mm in diameter fails
under a load of 150 N at 10% strain. What is the shearing resistance taking into account
the effect of change in cross-section of the sample?
(a) 0.068 N/mm2
(c) 0.034 N/mm2
(b) 0.088 N/mm2
(d) 0.044 N/mm?
Ans. (a)
2. A sample of saturated clay of height 20 mm and water content 30% was tested in an
oedometer. Loading and unloading of the sample were carried out. The thickness Hf of
the sample at the end of each stress increment/decrement is shown in the table below.
o: (kPa)
H, (mm)
100
200
400
200
18.68
100
18.75
20
19.31
18.62
a. Plot the results as void ratio versus o'z (log scale).
b. Determine Cc and Cr.
A sample of soil 50 mm in diameter was tested in direct shear. A normal force P was first applied to the sample and a direct shear force V was applied. The following combinations of P and V caused the specimen to exibit failure.P = 268 NP = 412 NV = 137 N V = 210 N
Estimate the nearest value of angle of internal friction of the soil in degree
choices A.36.88 ̊C.46.88 ̊B.26.88 ̊D.16.88 ̊
,The nearest value of cohesion of the soil
A.36.88 ̊C.46.88 ̊B.26.88 ̊D.16.88 ̊
& Nearest value of P in N if V=124N
A.234 NC.342 NB.324 ND.243 N
Chapter 2 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 2 - Classify the uncertainty associated with the...Ch. 2 - Figure 2.1 shows the PDF for a normal distribution...Ch. 2 - List three sources of epistemic uncertainty...Ch. 2 - Using a random number generator create a sample of...Ch. 2 - A certain column will carry a dead load estimated...Ch. 2 - A simply supported beam has a length of 3 m and...Ch. 2 - Using the data shown in Figure 2.5 determine the...Ch. 2 - The capacity for a certain foundation system is...Ch. 2 - We wish to design a shallow foundation with a...Ch. 2 - Prob. 2.10QPP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Three 150 mm 300 mm concrete cylinders with water to cement ratios of 0.4, 0.6, and 0.8, respectively. After c...
Materials for Civil and Construction Engineers (4th Edition)
Consider the circuit shown in Figure P1.63. Find the current iR flowing through the resistor. Find the power fo...
Electrical Engineering: Principles & Applications (7th Edition)
The variable a is a float and the variable b is a double. Write a statement that will assign the value of b to ...
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
What Ada construct provides support for abstract data types?
Concepts of Programming Languages (11th Edition)
Write a short program that declares and initializes double variables one, two, three, four, and five to the val...
Problem Solving with C++ (10th Edition)
Suppose the memory cells at addresses 0x00 through 0x05 in the Vole contain the following bit patterns: Address...
Computer Science: An Overview (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Direct shear test was conducted on soil specimen. It was observed that the specimen failed when V = 137KPa and P = 268KPa. In other soil sample, it failed at V = 210KPa and P = 412KPa. Determine the cohesion of the soil? Determine the internal angle of friction? What is the axial compressive stress when V = 243KPaarrow_forwardA series of three direct shear tests have been conducted on a certain saturated soil. Each test was performed on a 2.375-inch diameter, 1.0 inch tall sample. The test had been performed slowly enough to produce drained conditions. The results of the tests are as follows: Determine the friction angle and cohesion intercept. Test No. Normal Stress (psf) Shear Stress (psf) 2435 1656 2 4870 3571 3 7305 4578arrow_forwardCan TRIAXIAL TESTS be performed on sand samples? Briefly explain. The results of an undrained triaxial test on a clay soil sample are given in table below Cell Pressure (kN/m2) 200 400 600 Additional Axial Load at Failure (N) 342 388 465 Each sample, originally 76mm long and 38mm in diameter, experienced a vertical deformation of 5.1mm. Evaluate the stress at failure for each cell pressure given in table above. Draw Mohr Circles and determine the shear strength parameters of the soil.arrow_forward
- 4. The uniaxial compressive strength test is done on a cylindrical rock specimen with diameter of 60 mm and length of 120 mm. The load- deformation diagram of this specimen is shown on the following figure. Determine the uniaxial compressive strength and the secant Young modulus (E50) of this rock. 80000 70000 60000 50000 40000 30000 20000 10000 0.5 1 1.5 Deformation (mm) Load (N) 2.arrow_forwardIn a tri-axial test of silty soil, the sample failed at normal stresses of 521 kPa and a shear stress of 200 kPa. Compute the maximum failure stress. a. 781 kPa b. 510 kPa c. 838 kPa d. 812 kPaarrow_forwardA cohesionless soil sample was subjected to a triaxial test. The sample failed when the minor principle stress was 1200 lbs/ft2 and the deviator stress applied was 3000 lbs/ft2. Find the internal angle of friction of this soil. (answer in degrees)arrow_forward
- A direct shear test, when conducted on a remolded sample of sand, gave the following observations at the time of failure: Normal load = 288 N; shear load = 173 N. The cross-sectional area of the sample = 36 cm2. Determine the angle of internal friction in degrees. a. 29 b. 27 c. 33 d. 31arrow_forwarduse the attached graph paper) A series of direct shear tests was performed on a soil sample. Each test was carried out until the specimen sheared (failed). The laboratory data for the tests are tabulated as follows. Determine the soil's cohesion and angle of internal friction. Specimen Number 1 2 3 4 Normal Stress (kN/m²) 1200 1900 3000 4875 Shearing Stress (kN/m²) 2175 2310 2910 3615arrow_forwardA series of previous tests has established that the ultimate effective friction angle of a NC clayey soil is 19.2°. If a CD test is now performed on this soil with a cell pressure of 105 kPa, what would be deviator stress at failure? Given: o3 = Kao, where Ka 1-sin o' 1+sin o'arrow_forward
- : In a tri-axial test of a silty soil, the sample failed at normal stress of 475 kPa and a shear stress of 350 kPa. Which of the following gives the angle of internal friction? Compute the angle that the failure plane makes with the x-axis. Compute the maximum failure stress.arrow_forwardIn a tri-axial test of silty soil, the sample failed at normal stresses of 521 kPa and a shear stress of 200 kPa. 1. Find the angle of internal friction. a. 23° b. 19° c. 21° d. 22° 2. Compute the angle that the failure plane makes with the x-axis a. 55.5° b. 61.6° c. 61.7° d. 45.3° 3. Compute the maximum failure stress. a. 781 kPa b. 510 kPa c. 838 kPa d. 812 kPaarrow_forwardQuestion A sample of dry sand was tested in direct shear test apparatus under a normal load of 72 kg. The shear load required to fail the sample was found to be 36 kg. The angle of internal friction () will be:arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Geotechnical Engineering (MindTap C...Civil EngineeringISBN:9781305970939Author:Braja M. Das, Khaled SobhanPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Principles of Geotechnical Engineering (MindTap C...
Civil Engineering
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Cengage Learning
Experimental Testing of a Real Scale Flat Slab Building for Gravity and Lateral Loading; Author: American Concrete Institute;https://www.youtube.com/watch?v=t3jybLy7ev8;License: Standard Youtube License