Function:

Qua-druplex Strain Controlled Direct Shear Apparatus is a kind of strain controlled direct shear apparatus used to test resisting shear strength of soil specimen, it usually adopts four specimens under the different vertical pressure and to exert horizontal force to the specimens so as to obtain shearing stress while the specimen is destroyed. According to Coulomb’ s law to confirm the resisting shear strength coefficient, angle of internal friction and coagulable force of the soil.

Main technical data:

u  Area of soil sample: 30cm²      Lever ratio: 1:12

u  Vertical Loading: 50, 100, 200, 300, 400 (Kpa)

u  Max. horizontal loading: 1.2KN

u  Shear rate: 5, 2.4, 1.5, 1, 0.8, 0.02, 0.01mm/min

u  Working voltage: AC220V

 Feature:

u  A kind of strain controlled direct shear apparatus.

u  Finish 4 specimens tests at a time at different conditions

u  Stainless steel working table, Stepping motor transition system

u  Single-chip computer control, easy operation;

u  High precision, low noise, Freely set and display speed

u  According to Colomb’s law