MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
9th Edition
ISBN: 9781337705202
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Chapter 2, Problem 2.17P
To determine
Find the shear strength parameters peak cohesion
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A drained triaxial test was conducted on a normally consolidated clay specimen with a chamber confining pressure of 145 kN/m2. At failure, the deviator stress was 198 kN/m2. Determine the soil friction angle.
17. The results of a consolidated drained test for a normally consolidated clay were as follows: chamber confining pressure = 300 Kpa and deviator stress = 400 KPa a. Compute the angle of friction of the clay sample b. Compute the shear stress at failure plane c. Compute the normal stress on the plane of maximum shear.
A drained triaxial test on a normally consolidated clay showed that the failure plane makes an angle of 58° with the horizontal. If the sample was tested with a chamber confining pressure of 103.5 kN/m^2, what was the major principal stress at failure?
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MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
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- Following are the results of consolidated-undrained triaxial tests on undisturbed soils retrieved from a 4-m thick saturated clay layer in the field (sat = 20.7 kN/m3). a. Estimate graphically the Mohr-Coulomb shear strength parameters c' and '. b. Estimate the shear strength in the middle of the clay layer.arrow_forwardExperimental data for clay specimen obtained initial values of e1 = 1.12 and P1 = 90 kPa, and final values of e2 = 0.90 and P2 = 460 kPa Solve for the compression indexarrow_forwardData from an oedometer test using a clay specimen are plotted in the graph shown below. If the compression index is equal to 0.6, calculate the void ratio (e2) missing at Point C, which is associated with a vertical effective stress equal to 105 kPaarrow_forward
- A consolidated-undrained triaxial test was conducted on a dense sand with a confining pressure of 138 kN/m2. Results showed that ϕ′=24 deg and ϕ=31 deg. Determine the deviator stress and the pore water pressure at failure.arrow_forwardA consolidated-drained triaxial test was conducted on a normally consolidated clay. The results were as follows: Determine: a. Angle of friction, f? b. Angle u that the failure plane makes with the major principal plane c. Normal stress, s?, and shear stress, tf , on the failure planearrow_forward
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