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2. The results of a Consolidated Undrained (CU) triaxial test on a sand soil are in the figures below. The sample was subjected to a vertical load (do). At failure, the Δσ was 914 psi and the induced...
soil mechanics will rate if correct 13. A consolidated, undrained (CU) Triaxial test was performed on...
soil mechanics
will rate if correct
13. A consolidated, undrained (CU) Triaxial test was performed on a normally consolidated, saturated clay. The minor principal effective stress at the end of consolidation phase, c'3c was 100 kPa. The deviatoric stress, Aod, at failure was 60 kPa. The excess pore pressure at failure, Au was 45 kPa. What is the effective friction angle, "? (a) 21 degrees (6) 26 degrees (e) 33 degrees 14. A consolidated, undrained (CU) Triaxial test was performed...
Question 1 Consolidated undrained triaxial laboratory tests yielded the following results: Additional axial stress at Cell...
Question 1 Consolidated undrained triaxial laboratory tests yielded the following results: Additional axial stress at Cell pressure Pore water failure (kN/m2) pressure at failure (kN/m²) (kN/m²) 200 650 400 770 880 350 50 600 a. Draw the Mohr circles representing: i. Total stresses ii. Effective stresses b. From the Mohr circles, determine the cohesion and angle of internal friction for the two scenarios in a) above c. Briefly differentiate between consolidated drained (CD) and unconsolidated undrained (UU) triaxial tests. Indicate...
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...
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...
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)
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...
PART IV SHEAR STRENGTH OF SOILS 38 pts PROBLEM 4.1 a) A triaxial consolidated drained test...
PART IV SHEAR STRENGTH OF SOILS 38 pts PROBLEM 4.1 a) A triaxial consolidated drained test is performed on a NC clay with ?.-700 kPa and uo-200. The additional axial stress applied through the piston during the shear phase is 1130 kPa. What is the angle of internal friction of the clay (assume c'-0)? Draw total and effective stress Mohr circles for pre-shear and failure conditions. Indicate position of failure plane b) A duplicate specimen is tested undrained following identical...
(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...
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...
soil mechanics
will rate if correct
13. A consolidated, undrained (CU) Triaxial test was performed on a normally consolidated, saturated clay. The minor principal effective stress at the end of consolidation phase, c'3c was 100 kPa. The deviatoric stress, Aod, at failure was 60 kPa. The excess pore pressure at failure, Au was 45 kPa. What is the effective friction angle, "? (a) 21 degrees (6) 26 degrees (e) 33 degrees 14. A consolidated, undrained (CU) Triaxial test was performed...
Question 1 Consolidated undrained triaxial laboratory tests yielded the following results: Additional axial stress at Cell pressure Pore water failure (kN/m2) pressure at failure (kN/m²) (kN/m²) 200 650 400 770 880 350 50 600 a. Draw the Mohr circles representing: i. Total stresses ii. Effective stresses b. From the Mohr circles, determine the cohesion and angle of internal friction for the two scenarios in a) above c. Briefly differentiate between consolidated drained (CD) and unconsolidated undrained (UU) triaxial tests. Indicate...
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...
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)
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...
PART IV SHEAR STRENGTH OF SOILS 38 pts PROBLEM 4.1 a) A triaxial consolidated drained test is performed on a NC clay with ?.-700 kPa and uo-200. The additional axial stress applied through the piston during the shear phase is 1130 kPa. What is the angle of internal friction of the clay (assume c'-0)? Draw total and effective stress Mohr circles for pre-shear and failure conditions. Indicate position of failure plane b) A duplicate specimen is tested undrained following identical...
(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...
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...
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