Can TRIAXIAL TESTS be performed on sand samples? Briefly explain.
Q: Q2) Triaxial undrained test were performed on clay samples taken from clay stratum shown betow, the…
A: Given Effective cohesion = 20 kpa Angle of inclination of plane = 57° saturated unit weight of…
Q: Following data are given for a direct shear test conducted on dry silty sand:Specimen dimensions:…
A: The given data is shown below:
Q: Q2: A sample of clean sand was retrieved from 7m below the surface, vertical load of 150 kN/m, a…
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Q: QUESTION # 1: Following data are given for a direct shear test conducted on dhy sand: • Specimen…
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Q: direct shear test, when conducted on a remolded sample of sand, gave the following observations at…
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Q: In a triaxial test on a cohesionless soil, the soil fails when the deviator stress is 320 KPa, and…
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Q: A sample of dry sand is subjected to a tri-axial test. The angle of internal friction is 35.2°. The…
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Q: A series of vane shear tests have been performed on a soft clay stratum. The results of thesetests…
A: Given: Depth (m) 5.0 5.5 7.5 9.0 Tf (N-m) 9.0 10.7 12.0 14.7 Diameter of vane = 60 mm…
Q: The table shows the results of a consolidated undrained (CU) test on a overconsolidated clay soil…
A: For sample 1 σ1 =15+20-10σ1 =25 kpaσ3 =15-10 σ3 =5 kpaRelation of major and minor stress is given…
Q: Problem 3. A certain sand sample was tested in a consolidated undrained procedure in which the…
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Q: Q # 3. Following data are given for a direct shear test conducted on dry sand: Specimen dimensions:…
A: Given: Specimen dimension - 63mm×63mm×25mmσNormal stress - 105 kN/m2v Shear force at failur - 300…
Q: A rock core sample with a diameter of 47.6 mm and a length of 11.21 cm is loaded in uniaxial…
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Q: Question Attached
A: Given- σv=150KN/m2σh=250KN/m2τ=86.6 Kn/m2
Q: The direct shear test was performed for three soil specimens, it gave the following observations:…
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Q: Three consolidated-undrained tri-axial tests were performed on samples retrieved from a 4 meter…
A: For the test 1 - Value of σ'3σ'3 = σ3 - ∆udf⇒σ'3 = 80 - -12⇒σ'3 = 92 KNm2 Value of σ'1σ'1 = σ'3 +…
Q: Consolidated undrained triaxial tests are performed on two identical specimens of saturated,…
A: Total stress criteria : shear strength parameters are cohesion C and friction angle ϕrelation for…
Q: The angle of friction of compacted dry sand is 37°. In a direct shear test on the sand, normal…
A: Using Mohr coulomb equation
Q: In an unconfined compression test, a sample clay 100 mm and 50 mm in diameter fails under a load of…
A: Given, Length, l = 100 mm Diameter, d = 50 mm Load pressure, P = 150 N Strain, εa=10%=0.1
Q: Three consolidated-undrained tri-axial tests were performed on samples retrieved from a 4 meter…
A: GIVEN DATA :- TEST CHAMBER PRESSUER DEVIATOR STRESS PORE PRESSURE 75 75 166 -12 150 150 295…
Q: A direct shear test, when conducted on a remolded sample of sand, gave the following observations at…
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Q: A sample of dry sand is subjected to a tri-axial test. The angle of internal friction is 36.8°. The…
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Q: 1. A cylindrical sample of soil 50 mm in diameter × 100 mm long was subjected to axial and radial…
A: Given data: Diameter = 50 mm Height = 100 mm vertical displacement= 2 mm σ1'=280 kPaσ3'=100 kPa…
Q: Consolidated undrained triaxial tests are performed on two identical specimens of saturated,…
A: from triaxial test we know thatσ1=σ3tan245+ϕ2+2Ctan45+ϕ2where σ1=vertical stress =σd+σ3and…
Q: Following are the results of consolidated-undrained triaxial tests on undisturbed soils retrieved…
A: For the triaxial test the effective major and minor principal stresses at failure. Graphical…
Q: For a direct shear test on a dry sand, the following are given: • Specimen size: 75 mm x 75 mm x 30…
A: Given information: Specimen size: 75 mm x 75 mm x 30 mm (height) Shear stress on the failure…
Q: 2. Ten point load tests are carried out on cylindrical specimens of a sedimentary rock with 30 mm…
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Q: Following data are given for a direct shear test conducted on dry sand: • Specimen dimensions: 75 mm…
A: Given:- The dimension of the specimen = 75 mm ×75 mm×30 mm The normal stress = 250 kN/m2 The shear…
Q: In a tri –axial test of a silty soil, the sample failed at normal stress of 475 kPa and a shear…
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Q: A series of previous tests has established that the ultimate effective friction angle of a NC clayey…
A: Given Data: friction angle = 19.20 soil pressure = 105 kpa
Q: Foundation: Direct Shear Test
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Q: Following data are given for a direct shear test conducted on dry sand: Cylindrical specimen…
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Q: A sample of dry sand is subjected to a tri- axial test. The angle of internal friction is 34.8°. The…
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Q: For a dry sand specimen in a direct shear test box, the following are given: • Angle of friction:…
A: Angle of Friction (ϕ') = 38o Size of Specimen = 2x2x1.2 in Normal Stress (σ') = 20 lbin2
Q: Example: A series of conventional consolidated-undrained triaxial compression tests carried out on…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: The following results were obtained in a series of consolidated undrained test on saturated clay:…
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Q: Table 1 gives data from a standard shearbox(direct shear) test on a sample of 125g of dry sand. The…
A: Solution; Calculate the shear strain: r=xho*100r=0.0020*100r=0.00%
Q: 8. Following data are given for a direct shear test conducted on dry sand: Dimension of the…
A: The given information in the question is as follows. Normal stress σ=250 kN/m2The shear forceF=560 N…
Q: The size of a sand specimen in a direct shear test was 50 mm x 50 mm x 30 mm (height). It is known…
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Q: The following results were obtained from direct shear tests on specimen of sand compacted to the…
A: Given: Results of direct shear test conducted on compacted sand is as follows Normal stress(kPa)…
Q: A direct shear test is conducted on a 60 mm X 60 mm overconsolidatedclay specimen. The loading was…
A: Given table:- Normal load (N) Shear load (N) σ (kN/m2) S (kN/m2) 178 102 49.4 28.3 362 174…
Q: A series of direct shear tests has been performed on a dense well-graded sand. All tests were…
A: To determine the effective cohesion and effective friction angle they give normal and shear load at…
Q: After conducting a tri-axial test on a sand sample, the normal and shearing stresses on the failure…
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Q: 7.12 A sand specimen was subjected to a drained shear test using hollow cylin- der test equipment.…
A: Given:- A sand specimen in a hollow cylinder test equipment was subjected to the drained shear test…
Q: An undisturbed soil sample, 100 mm in diameter and 200 mm high, was tested in a triaxial machine.…
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Q: Problem 2: A vane shear test was conducted in a clay soil 8.5 m thick having a unit weight of 19.5…
A: GIVEN:Thickness of clay layer (H) = 8.5 m Unit wt of soil (γ) = 19.5 KN/m3…
Q: sample of soil is subjected to direct shear testing at its normal water content. Two test are…
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Q: Table 1 gives data from a standard shearbox(direct shear) test on a sample of 125g of dry sand. The…
A: Given: Direct shear sample=125g effective stress=50kpa Specific gravity=2.65 x is lateral…
Q: Q. 3. A consolidated undrained (CU) triaxial test was performed on two samples of a clay and the…
A: As per authoring guidelines, if the question number is not specified, the first question or three…
Q: In a drained triaxial test on consolidated clay the stress and angle are as follows: Deviator stress…
A: Given data:
- Can TRIAXIAL TESTS be performed on sand samples? Briefly explain.
- The results of an undrained triaxial test on a clay soil sample are given in table below
Cell Pressure (kN/m2) | 200 | 400 | 600 |
Additional Axial Load at Failure (N) | 342 | 388 |
465 |
Each sample, originally 76mm long and 38mm in diameter, experienced a vertical deformation of 5.1mm.
- Evaluate the stress at failure for each cell pressure given in table above.
- Draw Mohr Circles and determine the shear strength parameters of the soil.
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- 2. A sample of saturated clay of height 20 mm and water content 30% was tested in an oedometer. Loading and unloading of the sample were carried out. The thickness Hf of the sample at the end of each stress increment/decrement is shown in the table below. o: (kPa) H, (mm) 100 200 400 200 18.68 100 18.75 20 19.31 18.62 a. Plot the results as void ratio versus o'z (log scale). b. Determine Cc and Cr.A triaxial test was performed on a saturated soil and failed under a normal stress of 150 kPa. If the chamber confining pressure is zero and the failure plane makes an angle of 52°... Q: What is the shearing stress at the failure plane in kPa? Round off your answer to the next whole number.Q.64 In an unconfined compression test, a sample clay 100 mm and 50 mm in diameter fails under a load of 150 N at 10% strain. What is the shearing resistance taking into account the effect of change in cross-section of the sample? (a) 0.068 N/mm2 (c) 0.034 N/mm2 (b) 0.088 N/mm2 (d) 0.044 N/mm? Ans. (a)
- Two undrained triaxial tests were conducted on soil specimen, and they gave the following results: Sample Confining Pressure Deviator Stress A 350 kN/m² B 500 kN/m² 150 kN/m² 300 kN/m² The shear strength of sample A in the plane of it's normal stress is A 588 kPa B 283 kPa C 730 kPa D 165 kPa Correct Option5. Triaxial tests were conducted on undisturbed samples of clay under CU conditions. Data from the test are summarized in the Table 2. Graph the Mohr's circles and draw in the failure envelope. Determine the strength parameters c' and ("? Table 2. Data from CU Tests Cell pressure (3 (kPa) 359 719 719 Test A B C Pore pressure at Failure u (kPa) 339 585 451 Deviator Stress at Failure. (1-(3 (kPa) 539 731 1015The table shows the results of a consolidated undrained (CU) test on a overconsolidated clay soil sample. Sample No Cell Pressure (kPa) Deviator stress at failure (kPa) Pore water pressure at failure (kPa) 1 15 20 10 2 30 25 15 For the given data, plot the effective stress Mohr's circles at failure. Estimate the effective shear strength parameters C' amd phi'.
- Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of dry sand. When the triaxial shear test is performed, the specimen fails when the major and minor principal stresses are 80 and 20 lbs/in^2, respectively. When the direct shear test is performed, what shear strength can be expected if the normal stress is 4000 lbs/ft^2?d) An oedometer test was also performed on a (saturated) reconstituted sample obtained at the site. The initial void ratio was calculated as 1.005 and the initial sample height was 20 mm. The following measurements were reported for each of the 24-hr stress increments: Table 4. Oedometer test measurements Normal stress (kPa) 1.5 13 26 52 104 208 416 Change in sample height (mm) 0.419 0.199 0.229 0.209 0.208 0.199 Plot the evolution of the void ratio resulting from the data above using semi-logarithmic axes (i.e. produce an e-log o'y plot). Is there anything you can comment on the stress history and consolidation state of the soil?A direct shear test was carricd out on a cohesive soil sample and the following results were obtained. Normal stress (kN/m*) Shear stress at failure (kN/m) What would be the deviator stress at failure if a Triaxial test is carried out on the same soil with cell pressure of 150 (kN/m). 150 250 110 120
- A sand sample is subjected to direct shear testing at its normal (in situ) water content. Two tests are performed. For one of the tests, the sample shears at a stress of 3,000 psf when the normal stress is 4,000 psf. In the second test, the sample shears at a stress of 4,000 psf when the normal stress is 6,000 psf. From these data, determine the value of apparent cohesion and the corresponding angle of internal friction.A triaxial compression test was conducted on a saturated soil sample to determine its shear strength parameters: effective cohesion (C') and effective friction angle (O'). The confining pressure used during the test was 30 psi. The deviator stress on the sample at the time of failure was 40 psi. The porewater pressure measured at the time of failure was 5 psi a) The figure below shows the stress conditions on the sample at the time of failure. Provide the values of total stresses, o1 and oz on the sample. Total horizontal stress, o3 (psi) = (Report to the nearest whole number, i.e. no decimals) Total vertical stress, o1 (psi) (Report to the nearest whole number, i.e. no decimals) %3D b) The figure below shows the effective stress Mohr's Circle for the above soil sample at failure. What are the values of effective normal stresses at points A and B?The direct shear test was performed for three soil specimens, it gave the following observations: Specimen No. 1 2 3 Normal Stress (kN/m²) 70 150 225 Shear Stress at failure (kN/m²) 55 87.5 117.9 1- Find the strength parameters (c and Ø) 2- The angle of failure plane (0) 3- Find the principles stresses for specimen (No. 2)