Main function

The high-temperature and high-pressure rock triaxial apparatus completes mechanical performance tests of various materials such as rocks and concrete under computer control.

Capable of conducting axial disturbance dynamics tests under sine wave, triangular wave, and user-defined waveforms. It also includes the following experimental content:

1. Uniaxial and triaxial full stress-strain tests;

2. Customized experimental path testing; (cyclic loading test, etc.)

3. Dynamic disturbance test; (Sine wave loading test, etc.) - Optional

4. Measure the strength and deformation indicators of materials such as concrete, rock, and coal under high pressure, and obtain the variation laws of stress-strain curves of specimens under uniaxial and triaxial loading

5. Single axis and three-axis slow rate loading tests

6. Uniaxial and triaxial creep tests

7. Triaxial seepage test ---Optional

8. High temperature triaxial test

Host parameters

1. Test content: uniaxial full stress-strain test, triaxial full stress-strain test, uniaxial slow rate loading test, triaxial slow rate loading test, uniaxial and triaxial creep tests, uniaxial/triaxial dynamic loading test (Optional), as well as custom test path test, triaxial seepage test, high-temperature triaxial test, etc.

2. The stiffness of the host is ≥ 10GN/m, and the test size is standard Φ 50X100mm

3. Maximum axial force ≥ 1000KN; dynamic force ≥ 800KN (Optional); The measurement accuracy of the test force is ≤± 0.5% FS; the stroke is ≥ 50mm.

4. The displacement loading rate of the main oil cylinder is 0.01-100mm/min.

5. The master cylinder is dynamically loaded, with a maximum single axis frequency of ≥ 5Hz and an amplitude of ± 0.05mm. (Optional)

6. The maximum confining pressure is ≥ 80MPa, and the measurement accuracy of confining pressure is better than 0.5% FS.

7. The static control accuracy is better than 0.5% FS, and the dynamic control accuracy is better than 1.0% FS (10-100% FS).

8. The hydraulic pressure shall not be less than 30Mpa, and the medium shall be water. The flow rate range is 0.01-40ml/min, the flow accuracy is better than ± 0.5%, and the pressure pulsation is not higher than 0.5MPa. (Optional)

9. Temperature range: room temperature to+150 ℃.   

10. Dynamic waveforms include: upper half sine wave, lower half sine wave, sine wave, triangular wave, sawtooth wave, square wave, custom wave, frequency range: 0.01-5Hz (the highest frequency for the last four waveforms is 5Hz); The standard waveform has an adjustable initial phase angle of 0-360 ° for oscillation. The custom waveform has a dedicated editing module: up to 3 of them (including: upper half vector wave, lower half vector wave, sine wave, triangle wave, sawtooth wave, square wave, custom wave, custom function wave) can be selected simultaneously for superposition operation (addition, subtraction, multiplication, and division); The generated waves can be directly displayed on the curve graph or saved as data files; The same experiment can load no less than 10 custom waves. (Optional)

11. Load sensor, maximum measuring force 1000KN, comprehensive measurement accuracy 0.5% FS; quantity 1.

12. Displacement sensor, SSI signal, resolution 0.5um; quantity 3.  

13. Pressure sensor, accuracy 0.5% FS; quantity 1; Range of 100MPa.

Pressure sensor, accuracy 0.5% FS; quantity 1; Range 30MPa. (Optional)

14. Three axis built-in extensometer LVDT differential output; High pressure resistance of 100MPa, measurement range of ± 2.5mm, accuracy of 0.5% FS, 3 pieces (2 vertically and 1 circumferentially); Measurement range ± 5mm, accuracy quantity 0.5% FS, 3 pieces (2 vertically and 1 circumferentially).

15. High response servo valve, with a maximum operating pressure of 28MPa; Delay 0.2%, 0-100% full opening response time not exceeding 4ms (quantity 1).

16. Servo valve, maximum operating pressure 31.5MPa; Delay 0.2%, 0-100% full opening response time not exceeding 13ms (quantity 1).

17. Integrated automatic lifting buckle explosion-proof pressure chamber, no need to tighten bolts or clamps; The pressure resistance of the pressure chamber shall not be less than 140MPa. At the same time, the lead wire of the pressure chamber sensor shall not be less than 18 cores. The refueling and draining of the pressure chamber are all computer-controlled, without the need for manual valve tightening.

18. The axial dynamic and static actuator adopts bidirectional symmetrical output, gap sealing, thrust ≥ 1000Kn, dynamic force ≥ 800Kn. Quantity: 1 set.

19. Enclosed pressure boosting system, maximum boosting pressure ≥ 100MPa, chamber ≥ 1000cc; 1 set.

20. The oil source pressure shall not be less than 25MPa, and the flow rate shall not be less than 40L/min. PLC shall be used to control the pressure and flow rate. The flow rate and pressure can be set through touch screen and serial communication with the main controller. The flow rate and pressure can be adjusted from 15% to 100% FS.