EquipmentHollow Cylinder Torsional Shear Apparatus

The GDS Hollow Cylinder Torsional Shear Apparatus (GDSHCA) allows for control and measurement of axial displacement/load, rotational displacement/torque, outer cell pressure, inner cell pressure, and back pressure applied to hollow cylindrical soil specimens. Axial and rotational displacements/loads may be applied monotonically or cyclically, with cyclic frequencies ranging up to 5 Hz. The apparatus enables a very wide range of stress paths and deformation modes to be applied to soil elements, including shearing soil to very large shear strains.

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• Maximum cyclic loading frequency = 5 Hz
• Maximum axial load = 10 kN
• Maximum rotational torque = 100 Nm
• Maximum cell/back pressure = 2 MPa
• Nominal specimen size = 100 mm OD, 60 mm ID, 200 mm height

• Sean Rees

• Civil and Environmental Engineering

• Civil and Mechanical Building

• Available for internal & external use