Rock dynamic triaxial rheological testing machine
System composition
1. The structure of the testing machine adopts four columns. In order to improve the functionality of the testing machine, various three-axis tests can be completed under vertical servo actuators. The pressure chamber is pushed on the guide rail to load and unload samples in the three-axis pressure chamber.
2. Axial loading system: including host, force sensor, axial deformation sensor, radial and confining pressure deformation sensor, oil cylinder (actuator), displacement sensor, measurement and control device and software, positive sine wave loading, servo oil source control.
3. Lateral (confining) loading system: including three-axis pressure chamber, servo pressurization system, booster
4. Microcomputer system: specialized software for testing
Experimental function
Uniaxial compression test:
1. Various program functions such as constant stress, constant strain deformation, constant compression rebound creep, constant test rate, constant deformation rate, variable speed test, unidirectional cycling, uniaxial rheological test, etc.
2. Triaxial compressive strength of rock concrete, full process test, cyclic test
3. Optional fixtures for rock concrete splitting (indirect tensile, flexural)
4. Uniaxial rheological, relaxation, residual strength, elastic modulus, Poisson's ratio and other parameters of rock concrete
Triaxial compression test:
1. Axial compression under constant confining pressure, multi-stage confining pressure waveform stress-strain cyclic test.
2. Rock concrete triaxial compression, triaxial cycling, triaxial rheology, and triaxial full process
3. Characteristic parameters such as triaxial residual strength, elastic modulus, Poisson's ratio, etc. of rock concrete
4. Software and control of three-axis stress-strain waveform curves and storage of peak values with various related data graphics
5. Selection of Reverse Osmosis and Automatic Seepage System
Technical parameter
1. Axial loading: Ultimate test force: 1000kN ± 20N; Dynamic detection force: 1kN-800kN; Measurement accuracy ≤± 1% FS
2. Axial deformation: 0-10mm; Radial: 0-8mm ± 0.001mm; Cylinder actuator stroke 0-200mm ± 0.1mm
3. Control waveform dynamics: sine wave
4. Axial control mode stress and strain: 13 stress programs and waveforms can be edited.
5. Confining pressure: 0-50MPa, precision 0.1MPa, LCD display, CNC, adjustable, constant
6. Frequency: 0.1Hz~10Hz
7. Amplitude: 0.2-1.2mm
8. Force loading rate: 0.01-100kN/s
9. Displacement loading rate: 0.05-10mm/min
10. The computer measurement and control software displays real-time measurement parameters of each
channel and draws and displays various curves in real time. Data can also be stored and guided by number.
11. Rock concrete sample size: ￠ 25 × 100 ￠ 50 × 100 ￠ 100mm × 200mm optional
12. Pressure chamber material: high-strength special steel
13. Surrounding pressure medium: hydraulic oil
14. Control method: pressure control positive wave: ≤ ±1/5000
15. Place the tested sample into the deformation gauge, then connect the deformation gauge and sample into a circular pressure chamber, and apply confining pressure and axial pressure
16. Deformation gauge working temperature:- 40-50℃±5℃
Rheological system
1. Can complete triaxial rheological test
2. Continuous work for more than 100 hours
3. Rheological control fluctuation (long-term) experimental force ≤± 0.1%
4. Pressure: ≤ ±0.05%
5. Deformation: ≤ ±0.1%
Oil source:
1. Power: 45kW Voltage: 380V Oil source Flow rate: 300L/min
2. Temperature control function: water cooling (circulating cooling)
3. Hydraulic gear oil No. 25
4. Imported servo proportional valve flow rate 100 liters/min
5. Oil source with temperature control protection: 60 ℃
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