Q. 3. A consolidated undrained (CU) triaxial test was performed on two samples of a clay and the results are: (Note: X is your group Number) : Test No. Cell pressure (03) (kN/m) 90 +10X Deviator stress (Aơ) Pore water pressure (kN/m²) (u) (kN/m²) 40 1 160 +10X 2 190 +10X 250 +10X 95 3 290+10X 350 +10X 135 a) Draw the Mohr circles and the failure line in terms of total and effective stresses. (Use the EXCEL, see MOODLE). b) Using the Mohr circles in (a), find the shear strength parameters in terms of total stresses (c, o) and in terms of effective stresses(c', o'). c) For Test3 : What is the normal stresses and shear stresses at failure on failure plane (or, tr) and (o'r, tr)? d) Using the equations, check your answer in (b) for the case of total stress only. (Use the data from Test1 and Test 2 only). e) Comment on your results.
Q. 3. A consolidated undrained (CU) triaxial test was performed on two samples of a clay and the results are: (Note: X is your group Number) : Test No. Cell pressure (03) (kN/m) 90 +10X Deviator stress (Aơ) Pore water pressure (kN/m²) (u) (kN/m²) 40 1 160 +10X 2 190 +10X 250 +10X 95 3 290+10X 350 +10X 135 a) Draw the Mohr circles and the failure line in terms of total and effective stresses. (Use the EXCEL, see MOODLE). b) Using the Mohr circles in (a), find the shear strength parameters in terms of total stresses (c, o) and in terms of effective stresses(c', o'). c) For Test3 : What is the normal stresses and shear stresses at failure on failure plane (or, tr) and (o'r, tr)? d) Using the equations, check your answer in (b) for the case of total stress only. (Use the data from Test1 and Test 2 only). e) Comment on your results.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The value of x is 8
Transcribed Image Text:Q. 3. A consolidated undrained (CU) triaxial test was performed on two samples of a clay and
the results are: (Note: X is your group Number)
: Test No.
Cell pressure (03)
(kN/m²)
Deviator stress (Aơ)
Pore water pressure
(kN/m²)
(u) (kN/m²)
1
90 +10X
160 +10X
40
2
190 +10X
250 +10X
95
3
290+10X
350 +10X
135
a) Draw the Mohr circles and the failure line in terms of total and effective stresses. (Use the
EXCEL, see MOODLE).
b) Using the Mohr circles in (a), find the shear strength parameters in terms of total stresses (c,
p) and in terms of effective stresses(c', o').
c) For Test3 : What is the normal stresses and shear stresses at failure on failure plane (of, tr)
and (oʻr, ti)?
d) Using the equations, check your answer in (b) for the case of total stress only. (Use the data
from Test1 and Test 2 only).
e) Comment on your results.
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