3. In a drained tri-axial test, a specimen is confined under pressure and axially load The failure conditions of the specimen are analyzed for shear strength. What is th minor principle stress? Half the value of the major principle stress • Twice the value of the major principle stress The same as the confining pressure The same as the cohesion value ● ● ●
3. In a drained tri-axial test, a specimen is confined under pressure and axially load The failure conditions of the specimen are analyzed for shear strength. What is th minor principle stress? Half the value of the major principle stress • Twice the value of the major principle stress The same as the confining pressure The same as the cohesion value ● ● ●
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3. In a drained tri-axial test, a specimen is confined under pressure and axially loaded until failure.
The failure conditions of the specimen are analyzed for shear strength. What is the value of the
minor principle stress?
Half the value of the major principle stress
Twice the value of the major principle stress
. The same as the confining pressure
The same as the cohesion value
●
●
●
Expert Solution
Step 1
- Triaxial test is suitable for all types of soil like sand , clay.
- Triaxial test is performed to determine the shear strength of the soil.
- Stress distribution is uniform throughout the failure plane.
- Failure plane is not pre defined.
In Triaxial test:
Major principal stress= deviator stress + confining stress
Minor principal stress= confining stress
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