In a triaxial shear test of a clay sample, the soil is subjected to a confining pressure of 100 kPa inside the chamber. It was observed that failure of the sample in shear occurred when the total axial stress reached 200 kPa. Estimate the angle of internal friction.

In a triaxial shear test of a clay sample, the soil is subjected to a confining pressure of 100 kPa inside the chamber. It was observed that failure of the sample in shear occurred when the total axial stress reached 200 kPa. Estimate the angle of internal friction.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Shear Strentgh of the soil 2009
Soil
The results below were obtained at failure in a series of consolidated-untrained triaxial tests, with pore water pressure measurement, on specimens of a fully saturated clay. Determine the values of the shear strength parameters c' and 'If a specimen of the same soil were consolidated under an all-round pressure of 300 kN/m² and the principal stress difference applied with the all-round pressure changed to 400kN/m², what would be the expected value of principal stress difference at failure" 150 300 450 600 03 (kN/m²) 01-03 (kN/m²) u (kN/m²) 103 202 305 410 82 169 252 331
Please be clear in explaining..
A sample of pure Clay, (C) soil with two specimens underwent an unconsolidated undrained test with a cell pressure of 50 kN/m2 and 100 kN/m2. The test is under short term analysis test. The results are as followings. From the result below, what is the shear strength of the soil? Cell pressure, kN/m² 50 100 Max Maximum deviator stress, kN/m² 120 170
A consolidated undrained triaxial test was performed on a normally consolidated clay with a critical state friction angle of 230. After an initial isotropic consolidation at a cell pressure of 50 kPa, drainage was turned off, the cell pressure was increased to 85 kPa, and the sample was loaded to ultimate conditions. A pore pressure of 55 kPa was measured at ultimate state. What value of major principal total stress was measured at the ultimate state?
A direct shear test is performed on a soil sample with two different loads. In the first test, a normal stress of 55kPa is applied and the soil fails at a shear stress of 35kPa. In the second test, the soil failed at shear stress of 47kPa when a normal stress of 75 kPa was applied. Determine the values of internal friction angle and cohesion of the given soil sample.
Two different soil samples were subjected to the shear strength test, of which, the first cohesive soil specimen failed at the deviator test of 500 kN/m2, when the cell pressure of 400 kN/m2 was recorded in the tri-axial shear apparatus. The second soil sample with the coefficient of internal friction 30° was subjected to direct shear test. The proving ring constant value is 0.0001 N/µm and the soil failed at the constant normal stress of 600 kN/m2, when the dial gauge reading was observed as 50. Take the area of soil sample at failure as 100 cm2. What is the ratio of cohesion of the soil specimen (1) to soil specimen (2).
How to solve this question?
Soil Mechanism
a sample of dry sand is tested in direct shear. the shear box holding the same has a circular cross section with a diameter of 50 mm. The normal compressive load imposed is 200N. The sample shears when the shear force is 120N. Compute the Normal stress, Shear test at failure Angle ofninternal friction of this soil.
Soil Mechanism