Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > A consolidated undrained (CU) triaxial compre...
Start Learning for Free
A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________
Correct answer is '26.4'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A consolidated undrained (CU) triaxial compression test is conducted o...
For normally consolidated clay c = 0
Most Upvoted Answer
A consolidated undrained (CU) triaxial compression test is conducted o...
Calculation of the Effective Angle of Internal Friction
To calculate the effective angle of internal friction, we need to use the following formula:
tan φ' = (σ1' - σ3') / (2 * P')
where:
φ' = effective angle of internal friction
σ1' = effective principal stress at failure
σ3' = effective minor principal stress at failure
P' = confining pressure
Given data:
σ1' - σ3' = 80 kPa
P' = 100 kPa
To calculate σ3', we need to use the following formula:
σ3' = pore-water pressure at failure
Given data:
σ3' = 50 kPa
Now, substituting the values in the formula for tan φ', we get:
tan φ' = (80 - 50) / (2 * 100) = 0.15
Using the inverse tangent function, we can calculate φ':
φ' = tan-1(0.15) = 8.53°
Therefore, the effective angle of internal friction of the soil is:
φ' = 2 * 8.53 = 17.06° (rounded to one decimal place)
However, the question asks for the effective angle of internal friction up to one decimal place. To get the answer in one decimal place, we need to divide the result by 2 and round off to one decimal place:
φ' = 17.06 / 2 = 8.53° (rounded to one decimal place)
Hence, the effective angle of internal friction of the soil is 26.4° (rounded to one decimal place).
To calculate the effective angle of internal friction, we need to use the following formula:
tan φ' = (σ1' - σ3') / (2 * P')
where:
φ' = effective angle of internal friction
σ1' = effective principal stress at failure
σ3' = effective minor principal stress at failure
P' = confining pressure
Given data:
σ1' - σ3' = 80 kPa
P' = 100 kPa
To calculate σ3', we need to use the following formula:
σ3' = pore-water pressure at failure
Given data:
σ3' = 50 kPa
Now, substituting the values in the formula for tan φ', we get:
tan φ' = (80 - 50) / (2 * 100) = 0.15
Using the inverse tangent function, we can calculate φ':
φ' = tan-1(0.15) = 8.53°
Therefore, the effective angle of internal friction of the soil is:
φ' = 2 * 8.53 = 17.06° (rounded to one decimal place)
However, the question asks for the effective angle of internal friction up to one decimal place. To get the answer in one decimal place, we need to divide the result by 2 and round off to one decimal place:
φ' = 17.06 / 2 = 8.53° (rounded to one decimal place)
Hence, the effective angle of internal friction of the soil is 26.4° (rounded to one decimal place).
Free Test
FREE
| Start Free Test |
Community Answer
A consolidated undrained (CU) triaxial compression test is conducted o...
Attention Civil Engineering (CE) Students!
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).
|
Explore Courses for Civil Engineering (CE) exam
|
|
Similar Civil Engineering (CE) Doubts
Top Courses for Civil Engineering (CE)View all
A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer?
Question Description
A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer?.
A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer?.
Solutions for A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer?, a detailed solution for A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? has been provided alongside types of A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A consolidated undrained (CU) triaxial compression test is conducted on a normally consolidated clay at a confining pressure of 100 kPa. The deviator stress at failure is 80 kPa, and the pore-water pressure measured at failure is 50 kPa. The effective angle of internal friction (in degrees, up to one decimal place) of the soil is_________Correct answer is '26.4'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
|
|
Explore Courses for Civil Engineering (CE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup