The apparatus is designed and produced according to the standard of GB/T50123-1999. It is used to test resisting shear strength, deformation and pore pressure of the specimen under the iso-strain load and also can do UU, CU and CD test. Strain control is controlled by microprocessor to realize infinitely variable speed. Confining and back pressure are controlled by microprocessor automatically.

Specifications:

1. Specimen size:
   Ø39.1×80mm
2. Max. capacity:
   10kN (TSZ-1)，30kN(TSZ-3)
3. Platen travel:
   70mm
4. Load speed ratio:
   0.02～2.4mm/min(Infinitely variable speeds), Relative error≤5%(TSZ-1)
   0.02～4.5mm/min(Infinitely variable speeds), Relative error≤5%(TSZ-3)
5. Confining pressure(σ3):
   0～2.0MPa Digital display , control Error control:±1%FS
6. Back pressure(σb):
   0～1.0MPa Digital display , control Error control:±1%FS
7. Pore pressure(u):
   0～2.0 MPaDigital display, Measuring error:±1%FS
8. Volume deformation:
   0～50ml, Minimum resolution:0.1ml
9. Power supply:
   220V ±10%, 50Hz