Geotechnical Engineering - Vol 2 | 13. Triaxial Tests by Abraham | Learn Smarter
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Knowledge
13. Triaxial Tests

The chapter discusses triaxial compression tests used for soil analysis, highlighting procedures for conducting these tests on sands and clays. Various types of triaxial tests are outlined, along with their methodology for determining shear strength parameters using Mohr’s circles. Significant equations and principles related to effective and total stress are presented to aid in understanding soil behavior under applied pressures.

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Sections

  • 1

    Triaxial Tests

    Triaxial tests assess the shear strength of soil by applying controlled pressure and monitoring failure conditions in soil specimens.

    Learning Practice

  • 1.1

    Types Of Triaxial Tests

    Triaxial compression tests assess the shear strength of soil by varying confining pressures and stress conditions.

    Learning Practice

  • 1.2

    Consolidated-Drained Test (Cd Test)

    The CD test is a type of triaxial test used to analyze the behavior of saturated soils under consolidated drainage conditions.

    Learning Practice

  • 1.3

    Consolidated-Undrained Test (Cu Test)

    The Consolidated-undrained (CU) test is a triaxial test procedure for soil samples that evaluates their shear strength under undrained conditions while considering both effective and total stress.

    Learning Practice

  • 1.4

    Unconsolidated-Undrained Test (Uu Test)

    The Unconsolidated-undrained (UU) test is a triaxial compression test that measures the shear strength of saturated clay soils without allowing for drainage.

    Learning Practice

  • 1.5

    Shear Strength Parameters

    This section covers shear strength parameters determined through triaxial compression tests on soils, specifically highlighting testing methodology and the interpretation of results.

    Learning Practice

  • 1.6

    Total Stress Mohr’s Circles

    This section introduces total stress Mohr's circles as part of triaxial tests conducted on soils, detailing various test types and their applications in determining shear strength parameters.

    Learning Practice

  • 1.7

    Effective Stress Mohr’s Circles

    This section introduces the concept of effective stress in soils and its graphical representation through Mohr’s circles during triaxial tests.

    Learning Practice

  • 1.8

    Pore Water Pressure Parameter

    The section discusses the pore water pressure parameter and its role in triaxial tests conducted on soils, especially clays.

    Learning Practice

  • 1.9

    Triaxial Test Equipment

    The triaxial compression test is a pivotal soil testing method that evaluates the strength characteristics of sands and clays under various stress conditions.

    Learning Practice

References

33.pdf

Class Notes

Memorization

What we have learnt

  • Triaxial tests are essentia...
  • Three main types of triaxia...
  • The Mohr-Coulomb failure en...

Final Test

Revision Tests