Three specimnens of clay having a small air-void content were tested in the shearbox. Shear loading was started immediately after the application of the normalload and was completed in 8 minutes. The results are as follows:Normal Stress (kN/m2)Shear stress at failure (kN/m2)O Find the apparent cohesion of the clay.Find the angle of shearing resistance of the clay.What value of c would be obtained from an unconfined compression test on145241337103117131the same soil?

Given There are set of Readings which are observed while performing the test. We need to calculate,…

Answered: Three specimens of clay having a small…

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.18P

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2- A three-axis compression test has been performed on the clay sample, which has been comprehensively and normally strengthened to a stress of 300 kPa and a specific volume of 200. The values of q and volumetric strain are measured at axial strain of 0, 2 and percent (rupture). The value of N is equal to 300 and Landa is equal to 0.2. Draw a diagram of all- round stress on the initial all-round stress in terms of slicing on the initial all-round stress:.
2- A three-axis compression test on a clay sample that is comprehensive and normal up to a stress of 300 kPa and a specific volume of 2 Consolidated is done, The values of q and volumetric strain are measured at axial strain, 0, 2 and 10 percent (failure) . The value of N is equal to 3 and A is equal to 0.2. Graph of all-round stress on initial all-round stress Draw the initial all-round stress in terms of section
A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two "identical" clay specimens. The test results are as follows: Test Number Confining Pressure (kPa)| Deviator Stress at Failure (kPa) 102 96 (i) (ii) 1 2 50 100 Plot the total stress Mohr circles for both specimens at failure (indicate the major and minor principal stresses on the plot). Draw the total stress Mohr-Coulomb failure envelop (i.e., the "p=0" envelop). Estimate the undrained shear strength.
Q.9 An unconfined compression test was conducted on an undisturbed sample of clay. The initial area of the specimen is 1105 mm?. The load at failure measured by the proving ring was 32N and axial strain at failure was 0.162. The undrained shear strength of the clay will be
A CD triaxial compression test conducted on a clay specimen revealed that c'=5 kPa and o'=22°. What is the major principal stress at failure if the confining pressure is 35 kPa? Solve the problem graphically and then analytically.
2. A series of consolidated, undrained triaxial tests were carried out on specimens of a saturated clay under no backpressure. The test data at failure are summarized: Confining Pressure (kPa) Deviator Stress (kPa) Pore Water Pressure (kPa) 150 192 80 300 341 154 450 504 222 a. Draw the Mohr circles and find the cohesion and friction angles in terms of effective stresses. b. Compute Skempton’s A-parameter at failure for all three specimens. c. Is the soil normally consolidated or overconsolidated? Why? d. Another specimen of the same clay that was consolidated under a cell pressure of 250 kPa was subjected to a consolidated, drained triaxial test. What would be the deviator stress at failure?
Three specimens of clay having a small air-void content were tested in the shear box. Shear loading was started immediately after the application of the normal load and was completed in 8 minutes. The results are as follows: 241 117 3 3 Normal Stress (kN/m²) 145 Shear stress at failure (kN/m²) 103 Find the apparent cohesion of the clay. 337 131 Find the angle of shearing resistance of the clay. What value of c would be obtained from an unconfined compression test on the same soil?
A triaxial shear test was performed on a well-drained sand sample. The normal stress on the failure plane and the shear stress on the failure plane, at failure were determined to be 6100 psf and 4600 psf, respectively. a. Determine the angle of internal friction of the sand? b. Determine the angle of the failure plane? c. Determine the maximum principal stress? Please answer this asap. For upvote. Thank you very much
A soft clay in an unconfined compression test did not develop a failure plane but bulged during the test. The sample was 40 mm in diameter and 85 mm in length. The load carried at a strain of 15% was 70.4 N. Determine the shear strength.
An unconfined compression test was conducted on an undisturbed sample of clay. The initial area of the specimen is 1105 mm². The load at failure measured by the proving ring was 32N and axial strain at failure was 0.162. The undrained shear strength of the clay will be
A CU triaxial compression test was performed on saturated sand at a cell pressure of 100 kPa. The ultimate deviator stress was 350 kPa and the pore pressure at the peak stress was 40 kPa (suction). Estimate the total and effective stress shear strength parameters.
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? Show all work.

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