MyQuestionIcon

3

You visited us 3 times! Enjoying our articles? Unlock Full Access!

Triaxial Test-II

What does the...

Question

What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent?

A

The in-situ total normal stress

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

The in-situ total lateral stress

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

The in-situ effective principal stress

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

The in-situ shear stress

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B The in-situ total lateral stress
The triaxial cell contains soil sample which is subjected to an all round pressure. This is called the cell pressure or confining pressure. It acts radially the vertical surface of the specimen and axially at the top and bottom.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A sample of saturated cohesionless soil tested in a drained triaxial compression test showed an angle of internal friction of

30^{\circ}

. The deviator stress at failure for the sample at a confining pressure of 200 kPa is equal to

Q. A conventional drained triaxial compression test was conducted on a normally consolidated clay sample under an effective confining pressure of 200 kPa. The deviator stress at failure was found to be 400 kPa. An identical specimen of the same clay sample is isotropically consolidated to a confining pressure of 200 kPa and subjected to standard undrained triaxial compression test. If the deviator stress at failure is 150 kPa, the pore pressure developed (in kPa, upto one decimal place) is .

Q. In a drained triaxial compression test, a sample of sand fails at deviator stress of 150 kPa under confining pressure of 50 kPa. The angle of internal friction (in degree, round off to the nearest integer) of the sample, is .

Q. In an unconfined compression test on saturated clay, the undrained shear strength was found to be

6 t / m^{2}

. If a sample of the same soil is tested in an undrained condition in a triaxial compression at a cell pressure of

20 t / m^{2}

, then the major principal stress at failure will be:

Q. In a drained triaxial compression test conducted on sand, failure occurred when the deviatric stress was 200 kN/m

^{2}

at confining pressure of 75 kN/m

^{2}

. By conducting the undrained test on same soil specimen, the pore water pressure at failure was measured as 50 kN/m

^{2}

, the undrained angle of internal friction is

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Triaxial Test-II

Other Soil Mechanics

Join BYJU'S Learning Program

CrossIcon