180 160 140 120 100 80 riator stress q (kPa)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Please answer the questionoa and show all work
![Shear strength
Group Members:
180
160
140
120
100
80
60
40
• 45 kPa
• 90 kPa
20
• 135 kPa
2
4
6.
8
axial strain ɛ, ()
80
70
60
50
40
30
20
10
• 45 kPa • 90 kPa • 135 kPa
0.
2
4
8.
axial strain &, (%)
deviator stress q (kPa)
excess pore water pressure Au (kPa)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffb8ad2a1-ee28-48e1-88ee-e6a0e7084dd3%2F703c33b7-c0db-47ae-b3aa-0e18da2b2a3b%2Fxxm272f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Shear strength
Group Members:
180
160
140
120
100
80
60
40
• 45 kPa
• 90 kPa
20
• 135 kPa
2
4
6.
8
axial strain ɛ, ()
80
70
60
50
40
30
20
10
• 45 kPa • 90 kPa • 135 kPa
0.
2
4
8.
axial strain &, (%)
deviator stress q (kPa)
excess pore water pressure Au (kPa)
![Refer to the triaxial shear test data in the handout to answer the following questions. You may
work in groups of 2 to 3.
a) What type of triaxial test was performed (CU, CD, or UU)? How can you tell?
b) Samples of Soil 2 (see profile below) were obtained for the triaxial shear tests. Based on
the results of the triaxial shear tests and the soil profile shown below, calculate the long-
term shear strength of the soil at point A.
2 m
Soil 1:
Yt = 17.0 kN/m3
5 m
(above GWT),
Soil 1
Ysat = 19.0 kN/m3
(below GWT)
3 m
Soil 2
6 m
Soil 2 (Triaxial data):
Ysat = 18.5 kN/m3
c) If the elevation of the groundwater table decreased to point B, how would that affect the
long-term shear strength of the soil at point A? Quantify your answer.
d) Would you recommend including cohesion in the shear strength value used for design?
Why or why not?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffb8ad2a1-ee28-48e1-88ee-e6a0e7084dd3%2F703c33b7-c0db-47ae-b3aa-0e18da2b2a3b%2F1i2oxl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Refer to the triaxial shear test data in the handout to answer the following questions. You may
work in groups of 2 to 3.
a) What type of triaxial test was performed (CU, CD, or UU)? How can you tell?
b) Samples of Soil 2 (see profile below) were obtained for the triaxial shear tests. Based on
the results of the triaxial shear tests and the soil profile shown below, calculate the long-
term shear strength of the soil at point A.
2 m
Soil 1:
Yt = 17.0 kN/m3
5 m
(above GWT),
Soil 1
Ysat = 19.0 kN/m3
(below GWT)
3 m
Soil 2
6 m
Soil 2 (Triaxial data):
Ysat = 18.5 kN/m3
c) If the elevation of the groundwater table decreased to point B, how would that affect the
long-term shear strength of the soil at point A? Quantify your answer.
d) Would you recommend including cohesion in the shear strength value used for design?
Why or why not?
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