Static shear strength testing of soil

Fall cone, per measurement [ISO 17892-6]

  • Shear strength measurement

  • Thixotropy

Miniature vane [ASTM D4648]

  • Shear strength measurement

  • Thixotropy

Unconfined compression [ASTM D2166]

Direct shear [ASTM D3080*]

  • CD direct shear

  • Residual strength direct shear

Direct simple shear [ASTM D6528]

Torsional ring shear

  • Drained residual shear strength [ASTM D6467]

  • Drained fully softened shear strength [ASTM D7608]

  • Soil-steel interface ring shear [ICP 2007]

Triaxial UU (unconsolidated undrained, per specimen) [ASTM D2850]

Triaxial CU (consolidated undrained) [ASTM D4767]

  • Isotropic consolidation (CIUC) compression

  • Anisotropic consolidation (CAUC) compression

  • Anisotropic consolidation (CAUE) extension

  • Ko-consolidation (CKoUC) compression

  • Ko-consolidation (CKoUE) extension

Triaxial CD (consolidated drained) [ASTM D7181]

  • Isotropic consolidation (CIDC) compression

  • Anisotropic consolidation (CADC) compression

  • Anisotropic consolidation (CADE) extension

  • Ko-consolidation (CKoDC) compression

  • Ko-consolidation (CKoDE) extension

  • Each additional effective stress stage

Stress-path test

  • Anisotropic or Ko-consolidated

  • Stress path (axial, lateral, pore pressure control)

  • Drained or undrained shear