Product Description                                                                   

 

C002  strain control type triaxial instrument TSZ-1 type

 Strain-controlled triaxial instrument TSZ-3

 Strain-controlled triaxial instrument TSZ-6

 

A method for determining the shear strength of soil, which typically uses 3-4 cylindrical specimens to apply pressure at different constant ambient pressures (ie, small principal stresses3), ie, produces a stress difference (1-3). Shearing is carried out until failure, and then the shear strength parameters are obtained according to the Moore-Coulomb theory.

Determine the total shear strength parameters and effective shear strength parameters of fine-grained soil and sandy soil, and divide into unconsolidated undrained shear (UU), consolidated undrained shear (CU or UU), and consolidation according to different drainage conditions. Three tests (pore water pressure dissipation test) such as drainage shear (CD), (multi-stage loading triaxial compression of one sample).

1. Unconsolidated undrained (UU) test is to allow the sample to drain when applying ambient pressure and increasing axial pressure until the failure process.

2. Consolidation undrained (CU or UU) is to make the sample first drain and solidify under a certain surrounding pressure, and then increase the axial pressure until it is destroyed without undraining.

3. Consolidation drainage (CD) is to make the sample drain and solidify under a certain surrounding pressure, and then increase the axial pressure until the sample is allowed to fully drain.

4. A sample multi-stage loading triaxial test applies confining pressure and axial pressure for shearing (unsaturated soil, disturbed soil, irregular cracked cracked soil that cannot be tested by multiple specimens).

5. the cylindrical sample is subjected to the surrounding pressure or under the K0 condition to generate the pore water pressure dissipation coefficient, the dissipation percentage and the pore pressure coefficient (applicable saturation is greater than 85% of the original clay soil and the water content is greater than the optimal water content). Rate the solid clay soil).

Technical parameters:

1, voltage: 220V  10V 50Hz power 0.75kW

2, axial maximum load: 10kN, 20kN, 30kN, 60kN, 100kN dynamometer optional, (optional force sensor digital display)

3, axial deformation: 0-10mm  0.01mm (percent dial) can also be equipped with displacement sensor LCD display, or choose electromechanical dial indicator communication

4, strain rate: 0.0024~4.5mm/min stepless speed regulation, any adjustment, liquid crystal display

5, the surrounding pressure: 0-2MPa  0.1kPa LCD display CNC

6, back pressure, pore pressure: 0-2MPa  0.1kPa liquid crystal display numerical control body tube 0~50ml, precision 0.1ml

7, lifting stroke: 0-90mm

8. Sample (container cylinder): 61.8 39.1 101

9. It consists of main engine, measurement and control system, pressure regulating system, volume change tube, pressure chamber, constant pressure gauge and pressure regulating valve.