Standard Test Method for Consolidated Drained Triaxial Compression Test for Soils

Importancia y uso:

5.1 The shear strength of a saturated soil in triaxial compression depends on the stresses applied, time of consolidation, strain rate, and the stress history experienced by the soil.

5.2 In this test method, the shear characteristics are measured under drained conditions and are applicable to field conditions where soils have been fully consolidated under the existing normal stresses and the normal stress changes under drained conditions similar to those in the test method.

5.3 The shear strength determined from this test method can be expressed in terms of effective stress because a strain rate or load application rate slow enough to allow pore pressure dissipation during shear is used to result in negligible excess pore pressure conditions. The shear strength may be applied to field conditions where full drainage can occur (drained conditions), and the field stress conditions are similar to those in the test method.

5.4 The shear strength determined from the test can be used in embankment stability analyses, earth pressure calculations, and foundation design.

Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.

Subcomité:

D18.05

Referida por:

D8295-19, E2277-14R19, D4015-21

Volúmen:

04.09

Número ICS:

13.080.20 (Physical properties of soil)

Palabras clave:

back pressure saturation; consolidated drained strength; effective stresses; non-cohesive soil; strain-controlled loading; stress-strain relationships;