A shear test was conducted on a soil sample- At failure the ratio of - 1- 32 to- 1- 32 is equal to unit- Which one of the following shear tests represents this condition-

When ratio of σ _1 σ_32 toσ _1+σ _32 is equal to unity σ_1 σ_32=σ_1+σ_32 σ _3=0 (Confining pressure zero) This case is represented by unconfined compre ...

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Soil Mechanics

Unconfined Compression Test

A shear test ...

Question

A shear test was conducted on a soil sample. At failure the ratio of $\frac{σ_{1} - σ_{3}}{2} t o$ $\frac{σ_{1} + σ 3}{2}$ is equal to unit. Which one of the following shear tests represents this condition?

Drained triaxial compression test

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Undrained triaxial compression test

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Undrained triaxial compression test

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Unconfined compression test

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Solution

The correct option is D Unconfined compression test
$W h e n r a t i o o f \frac{σ_{1} - σ_{3}}{2} t o$ $\frac{σ_{1} + σ_{3}}{2} i s e q u a l t o u n i t y$ $\frac{σ_{1} - σ_{3}}{2} = \frac{σ_{1} + σ_{3}}{2}$

$σ_{3} = 0$ (Confining pressure zero)

This case is represented by unconfined compression test.

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A shear test was conducted on a soil sample. At failure the ratio of σ1−σ32 toσ1+σ32 is equal to unit. Which one of the following shear tests represents this condition?

The correct option is D Unconfined compression testWhen ratio of σ1−σ32 to σ1+σ32 is equal to unity σ1−σ32=σ1+σ32 σ3=0 (Confining pressure zero) This case is represented by unconfined compression test.

A shear test was conducted on a soil sample. At failure the ratio of $\frac{σ_{1} - σ_{3}}{2} t o$ $\frac{σ_{1} + σ 3}{2}$ is equal to unit. Which one of the following shear tests represents this condition?