An object describing the properties of a laboratory triaxial shear test procedure. In a triaxial shear test, stress is applied to a sample in a way whichresults in stresses along one axis being different from the stresses inperpendicular directions. In conventional triaxial tests, this involves subjecting acylindrical soil sample to radial stresses (confining pressure) and controlledincreases in axial stresses or axial displacements. Depending on the combination ofloading and drainage condition, three main types of triaxial tests can be carriedout: 1) Consolidated – Drained (CD), 2) Consolidated – Undrained (CU), 3)Unconsolidated - Undrained (UU). From the triaxial test results, it is possible todeduce the shear strength parameters, namely friction angle, cohesion, dilatancyangle and the other dependent parameters.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
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<element abstract="false" name="TriaxialTest" substitutionGroup="diggs:AbstractLaboratoryTestProcedure" type="diggs_geo:TriaxialTestType"><annotation><documentation>An object describing the properties of a laboratory triaxial shear test procedure. In a triaxial shear test, stress is applied to a sample in a way which results in stresses along one axis being different from the stresses in perpendicular directions. In conventional triaxial tests, this involves subjecting a cylindrical soil sample to radial stresses (confining pressure) and controlled increases in axial stresses or axial displacements. Depending on the combination of loading and drainage condition, three main types of triaxial tests can be carried out: 1) Consolidated – Drained (CD), 2) Consolidated – Undrained (CU), 3) Unconsolidated - Undrained (UU). From the triaxial test results, it is possible to deduce the shear strength parameters, namely friction angle, cohesion, dilatancy angle and the other dependent parameters.</documentation></annotation></element>