Pore Pressure Measurements were made during undrained triaxial test on samples of compacted material as shown...
Pore Pressure Measurements were made during undrained triaxial test on samples of compacted material as shown below:
Calculate the value of effective principle stresses for each test and show the result on a sketch of Mohr's Circle Diagram.
| Measured Parameters | Test 1 | Test 2 |
| Confining Space kPa | 150 | 450 |
| Deviator Stress kPa | 400 | 1000 |
| Pore Water Pressure kPa | 30 | 125 |
Homework Answers
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Pore Pressure Measurements were made during undrained triaxial
test on samples of compacted material as shown...
2. A consolidated undrained triaxial test, in which pore pressure measurements were made, was carried out...
2. A consolidated undrained triaxial test, in which pore pressure measurements were made, was carried out on a saturated soil with the following results. Given that the initial diameter of the sample was 38 mm in all three cases, determine the values of cohesion and angle of internal friction with respect to (a) total stresses (c and o). (b) effective stresses (c' and o'). The minor and major principal stresses are calculated and presented in the table below (You are...
2.If an additional CU triaxial test with pore pressure measurement is to be performed using a...
2.If an additional CU triaxial test with pore pressure
measurement is to be performed using a ?3 of 250 kPa on a specimen
identical to those in last Problem , estimate the deviator stress
(?d) and pore pressure (u) of this additional test at failure. What
would potentially be orientation of the failure plane in the
specimen?
The results below were obtained at failure in a series of consolidated-undrained (CU) triaxial tests, with pore pressure measurement, on specimens of fully...
Consolidated-undrained triaxial tests (with pore pressure measurem on a fully saturated clay. The results are as...
Consolidated-undrained triaxial tests (with pore pressure measurem on a fully saturated clay. The results are as follows: 03 (kPa) 150 300 450 600 q (kPa) 103 202 305 410 u (kPa) 82 169 252 331 Calculate the effective shear strength parameters, c' and '.
4. Shear Strength A sample of cohesive soil with undrained shear strength of 30 Kpa is beng tested in a triaxial est with a confining pressure of 15 Kpa (see the figure below). Sketch the failure...
4. Shear Strength A sample of cohesive soil with undrained shear strength of 30 Kpa is beng tested in a triaxial est with a confining pressure of 15 Kpa (see the figure below). Sketch the failure envelope and Mohr's circle representing the state of stress at failure. Evaluate the following: (i) The vertical axial stress at failure. (ii) The major and minor principal stresses at failure (ii) The orientation of failure plane with respect to horizontal plane. (iv) The normal...
A consolidated undrained (CU) triaxial compression test (TXC) was conducted on a specimen of saturated clay....
A consolidated undrained (CU) triaxial compression test (TXC) was conducted on a specimen of saturated clay. The specimen was isotropically consolidated to a total cell pressure, σcell of 400 kPa. The backpressure was u0 = 100 kPa. At failure, the total pore water pressure was u = 90 kPa and the deviator stress was (σ1 − σ3)f = 526 kPa. Determine: a. The principal effective stresses, σ1′ and σ3′, at failure b. The friction angle, φ′ (secant method). c. The...
(12 marks) (a) In a triaxial test for sand (c) the stress increment (s)-2.5o. What is...
(12 marks) (a) In a triaxial test for sand (c) the stress increment (s)-2.5o. What is the angle of internal frictica (o (b) A consolidated undrained (CU) triaxial test was performed on two samples of a clay and the results are: Test No. Cell pressure (kNm) Devilo stress ( km) Pore water pressure (kN) G; 1 150 500 220 (i) The Mohe circles and the failure line in terms effective stresses are drwn as shown in the figure below. List...
please help me Q2:- The data for two soil samples at triaxial Consolidated-Undrained (C-U) test was...
please help me
Q2:- The data for two soil samples at triaxial Consolidated-Undrained (C-U) test was as follow: Deviator load Height Diameter Cell pressure Pore water pressure sample (gram) (mm) (mm) (03) (pa) (Au) (pa) Si 75 35 50000 40000 4815 S2 72 35 70000 50000 5775 a) Draw the T - o relationship and determine shear strength parameters. b) Estimate the effective shear and normal stresses at failure plane for sample (S1). (tack g=10m/s) (30 points)
help me with this question, please Q2:- The data for two soil samples at triaxial Consolidated-Undrained...
help me with this question, please
Q2:- The data for two soil samples at triaxial Consolidated-Undrained (C-U) test was as follow: Deviator load Height Diameter Cell pressure Pore water pressure sample (gram) (mm) (mm) (03) (pa) (Au) (pa) Si 75 35 50000 40000 4815 S2 72 35 70000 50000 5775 a) Draw the T - o relationship and determine shear strength parameters. b) Estimate the effective shear and normal stresses at failure plane for sample (S1). (tack g=10m/s) (30 points)
A consolidated undrained triaxial test on a specimen of saturated clay was carried out under an all-around pressure of 400kPa. The following results were recorded during the test. 319 158 279 80 214...
A consolidated undrained triaxial test on a specimen of saturated clay was carried out under an all-around pressure of 400kPa. The following results were recorded during the test. 319 158 279 80 214 0 (kPa) u (kPa) 0 188 118 233 29 Li (10 marks) Draw the total and effective stress path. a. (3 marks) Give the value of the pore water pressure coefficient A at failure. b. / c) Deduce from the stress paths and pore pressure coefficient A...
Please only answer if you have good personal understanding of problem. i rate. include relevant d...
please only answer if you have good personal understanding of
problem. i rate. include relevant drawing and details for
understanding
Problem 8 Consolidated undrained triaxial tests for two similar specimens with different con- solidation stresses were performed and the data in Figure 11.21 is obtained, which includes pore water pressure measurements. Plot Mohr's circles at failure for two specimens in both the total stress and in the effective stress and determine the shear strength parameters c and ф from the...
2. A consolidated undrained triaxial test, in which pore pressure measurements were made, was carried out on a saturated soil with the following results. Given that the initial diameter of the sample was 38 mm in all three cases, determine the values of cohesion and angle of internal friction with respect to (a) total stresses (c and o). (b) effective stresses (c' and o'). The minor and major principal stresses are calculated and presented in the table below (You are...
2.If an additional CU triaxial test with pore pressure
measurement is to be performed using a ?3 of 250 kPa on a specimen
identical to those in last Problem , estimate the deviator stress
(?d) and pore pressure (u) of this additional test at failure. What
would potentially be orientation of the failure plane in the
specimen?
The results below were obtained at failure in a series of consolidated-undrained (CU) triaxial tests, with pore pressure measurement, on specimens of fully...
Consolidated-undrained triaxial tests (with pore pressure measurem on a fully saturated clay. The results are as follows: 03 (kPa) 150 300 450 600 q (kPa) 103 202 305 410 u (kPa) 82 169 252 331 Calculate the effective shear strength parameters, c' and '.
4. Shear Strength A sample of cohesive soil with undrained shear strength of 30 Kpa is beng tested in a triaxial est with a confining pressure of 15 Kpa (see the figure below). Sketch the failure envelope and Mohr's circle representing the state of stress at failure. Evaluate the following: (i) The vertical axial stress at failure. (ii) The major and minor principal stresses at failure (ii) The orientation of failure plane with respect to horizontal plane. (iv) The normal...
(12 marks) (a) In a triaxial test for sand (c) the stress increment (s)-2.5o. What is the angle of internal frictica (o (b) A consolidated undrained (CU) triaxial test was performed on two samples of a clay and the results are: Test No. Cell pressure (kNm) Devilo stress ( km) Pore water pressure (kN) G; 1 150 500 220 (i) The Mohe circles and the failure line in terms effective stresses are drwn as shown in the figure below. List...
please help me
Q2:- The data for two soil samples at triaxial Consolidated-Undrained (C-U) test was as follow: Deviator load Height Diameter Cell pressure Pore water pressure sample (gram) (mm) (mm) (03) (pa) (Au) (pa) Si 75 35 50000 40000 4815 S2 72 35 70000 50000 5775 a) Draw the T - o relationship and determine shear strength parameters. b) Estimate the effective shear and normal stresses at failure plane for sample (S1). (tack g=10m/s) (30 points)
help me with this question, please
Q2:- The data for two soil samples at triaxial Consolidated-Undrained (C-U) test was as follow: Deviator load Height Diameter Cell pressure Pore water pressure sample (gram) (mm) (mm) (03) (pa) (Au) (pa) Si 75 35 50000 40000 4815 S2 72 35 70000 50000 5775 a) Draw the T - o relationship and determine shear strength parameters. b) Estimate the effective shear and normal stresses at failure plane for sample (S1). (tack g=10m/s) (30 points)
A consolidated undrained triaxial test on a specimen of saturated clay was carried out under an all-around pressure of 400kPa. The following results were recorded during the test. 319 158 279 80 214 0 (kPa) u (kPa) 0 188 118 233 29 Li (10 marks) Draw the total and effective stress path. a. (3 marks) Give the value of the pore water pressure coefficient A at failure. b. / c) Deduce from the stress paths and pore pressure coefficient A...
please only answer if you have good personal understanding of
problem. i rate. include relevant drawing and details for
understanding
Problem 8 Consolidated undrained triaxial tests for two similar specimens with different con- solidation stresses were performed and the data in Figure 11.21 is obtained, which includes pore water pressure measurements. Plot Mohr's circles at failure for two specimens in both the total stress and in the effective stress and determine the shear strength parameters c and ф from the...
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